Let’s talk about asymmetrical and symmetrical balls and the flare 

This was probably one of the best sym v asym videos I've seen

I second the “best asym vs sym video” comments.The NASA video really brings it home as far as how asymmetry on a rotating mass works and how it resists changing the axis of rotation. Imagine an infinite frictionless plane throwing both asym and sym. The asym would flip directions constantly and the sym would come around and hit you in the arse. Great vid, thanks.

Too bad Mo Pinel wasnt still around. Be willing to bet he would have an explanation on this. Great video Robert! As a high rev guy myself this tells me a lot.

What an informational video and it opens my eyes as to the on lane behavioral difference between the two types of balls. Thanks Robert. 2 thumbs up

This is best Core Video I’ve ever seen thank Robert smith! Been a fan since early 2000’s! My experience is exactly the same symmetrical balls or asyms with very low intermediate diff are much more continuous on backend. Asymmetrical balls are more hook set or more sharp

Without a question, the absolute best Asym vs. Sym video I have ever seen. And, it opened my eyes to why I tend to steer away from Asym balls, especially higher diff & intermediate pieces (unless they're pearl and longer by design). Lower diff and intermediate Asym pieces work well for me, though. This was rad! Well done, brother!

I’m no Robert Smith but I’ve got a few revs. For years I’ve always had all kinds of problems with most asyms just puking on the back end. Recently I’ve started messing with some trick layouts to try to reduce the flare and I’ve found some success.

The intermediate diff has the effect of creating a decorrelation between the spherical surface of the ball and the axis migration path (RG plane that intersects the PAP). There are other factors such as weighted flip blocks as well. Imagine a perfectly circular highway. (the axis migration path on an undrilled symmetrical ball) And a car (the PAP) that travels at a constant 60mph (RG value) along that curve from a defined start point A to a defined end point B. (core precession caused by the total diff) The car will take a specific amount of time to travel that distance, and will do so at a very even pace. Now imagine a shortcut across the middle of the circle from point A to point B. (the aforementioned decorrelation, or asymmetry, represented by the intermediate diff created by a drilled thumbhole) The car will get from point A to point B faster along the shortcut, even though it is still moving at 60mph. Bowling balls with higher int diff values will have greater surface to path decorrelation and thus a more significant "shortcut" from A to B. This shortcut results in wider spacing between the track flares, a rapid increase in traction and torque, and faster conversion to roll. This results in the hook and stop motion for high rev players with big asymms. Symms tend to be more continuous because the pin-to-spin-line is between the pin and thumbhole (far from the intitial PAP) and with a much lower value than big asymms. TLDR: the shape and orientation of the axis migration path relative to the PAP affects ball motion. I think Nick's ball is rolling over the thumbhole probably because he usually has the pin positioned quite high relative to the grip. This moves the lower bowtie closer to the thumbhole, so large flaring balls will tend to roll over the thumb on the backend.

Very cool insights! Would love to see someone with a more technical degree work with you on a follow up!

100% Mr Smith! Asym definitely is more tame off the back than Sym.

good one sir. if ya need 70 to 80 degree on a high inter, diff ball flares the whole ball for high rev rate player

Absolutely fascinating video Robert. Thank you so much for making it. Also, wishing you every success on the PBA50 Tour. Would love to you in some live action competition. All the best!

Great video. Definitely helped me understand why I hated asyms when I was younger lol.

One of the best informative videos on basic bowling ball stuff that no one ever talks about in depth. Most of the other videos just discuss the ball and motion which is understandable. But thus by far blows everything out of the water completely so informative and definitely will help anyone with these types of balls no matter the brand. Thus definitely helps pick an arsenal for their type of bowling and lane condition really makes ya think about what balls you have or even what you are planning to get. Whether it is a pearl or solid symmetrical or Asymmetrical puts a lot of idiosyncrasies into play ROBERT KUDOS to you ON A GREAT VIDEO you have now made more sense to me on the depiction of what is what and why Thank you ❤❤👍👍👍🇺🇸🇺🇸 look forward to next video and keep em coming

Awesome video! Great explanation.

Thanks Robert’ that was a very great video on asymmetric balls

The black chaos remake my dad got when it was released was awesome for him . But I have more speed and lower Rev rate ( I'm a typical lefty up the boards but I use my elbow and wrist to make up for the low revs.) the chaos flares and the last ring in under the thumb and when I threw the spy from radical it would flare get stable but then it would become unstable and flare again. And with the combo of my elbow and wrist I hit the ball as much as I can every shot .

Big Assymetrical balls are made for heavy oil so the ball will roll early and roll out. In other words, you are exactly correct.

Awesome explanation between asym and sym cores and flare.

Met you in Vegas this past week at South Point. Great video. Stay healthy

I don't understand why the rings are on the right side of the grip and not left? So confused LOL!

Very interesting.

Can you do a video on the Sarge Easter grip. Why you went to it, what you did and didn’t like about it, and why you went back to a normal grip.

Really like these videos. Just wish someone would make them for us low speed, low rev bowlers. This is a good expllanation of the diffrence but find it hard to relate to the way I bowl.

great video! gives great insight when thinking about what ball to use .

I was just thinking about this recently too, glad i wasnt the only one

Very, very interesting. Thanks Bob!

Thank you so much for this informative video 👍🏻👏🏻💐

Nice video Bob, but… When are you going back on the PBA 50? We need you to get that title!, Jim

Quick experiment Rob, just for the theory of motion.. Maybe try increasing the length of the oil and volume.... To Reduce the back end distance.... (Goal: DECREASE the COEFFICIENT OF FRICTION) Purpose: see if the extra spin time from More oil will allow the ball to overflare like you're thinking. We all know the ball will only change direction once it hits friction... So my thought is It will flare like you're thinking... But then are the lanes really playable????

Great information, keep up the videos your the best!

My ball speed on screen is 11 mph. My 0V8 Captiv8 provides nice length and response to friction, while I see little motion from my Brutal Collison. Both are about 40x5x25. Wondering if the asymmetrical ball burns up? Looking for a ball with same motion as the Captiv8 but reads earlier for when the Captiv8 comes in behind the head pin. Suggestions?

I think the amount of oil that proprietors are using verse the surface of the lanes is a bigger issue that we DONT talk about... Bowling ball technology has expanded so much (The lanes can't keep up) as a PRO you know Lane surface will dictate a lot of what the ball will be allowed to do... ( Hpl hard surface lanes vs soft grippy lanes)..Big asymmetric equipment rolls better with more oil... Depending on the part of the country you bowl..... I don't think there's enough oil to get the maximum benefits of the balls ability.... Which introduces The unlimited amount of ball surface adjustments that need to be made to compensate..... Think about it

Website says 5-6” of total flare but his flares almost the entire ball 😂 some people are just built different.

Great vid

I met him before and he is not my coach but art is I will get Robert later on and I. Got me new shoes for bowling and bowling bag

I wonder how fast that transfer is made with the bolt…does it accelerate or does it move at a constant rate on the arc? Either way, is there an optimal point to hit the pocket during that 180 degree weight transfer?

Unrelated directly to the video, but I noticed you use an oval grip for one finger and a lift grip for the other. Curious as to why?

What happens if you place the mass bias really close to your thumb on asyms? Wouldn't it make more sense so it will stop rev before rolling over your thumb? With an higher track flare it would make sense wont it?

Robert you get another same ball n lay out pin down what is the ball reaction can you do it

So thats why belmo only uses symmetrical stuff

As Mo told me all balls are Asymmetrical after drilling…

One the Widow, isn't your MB locator in an earlier hooking but less flaring location?

So is that why lot of tour guys are putting the mass bias 6 inches from pap, and they said so they don't stop. Also EJ does a basic neutral layout on his stuff maybe for that reason.

Which phone is good for dry lings

What is the channel you refer to at the beginning? I can’t make out exactly what you are saying?

I think the symmetrical ball u need to kick the cg under the thumb so ur flare rings don't roll over the thumb I think a neutral layout will make the ball roll better not track as high

question whats your pap and layout?