Eh the fire method can be plenty safe (he went way overboard). All too often when I've needed to save fittings it's because they're in or under slab and there's no way to get a drill in there unfortunately.
Where was this a fww mths ago. Someone groundworked a toilet 16.5" off the wall so I had to go move it over 4 inches. Jackhammered and dug down and the toilet was almost tight to the double wye so no realistic way to just coupling it. Had to cut it out and slowly chip the short piece out of the double wye hub with a screwdriver and hammer because that's faster than jackhammering everything and making a mess and use extra fitting to cut out the double wye. This wouldve saved me so much headache. His reasoning for having one is super hood. You'll RAAAAAARRLY use it. But those 2 or 3 times you do you'll be so much more mentally stable 😆
I use them all the time but i hate doing it, you have to literally glue the everloving crap out of that fitting all those grooves can cause a leak but wont lie they sure are handy
Take a belt sander or something and set the tool up to take some meat off the OD. Always better if they're a little undersized and I gotta finish the removal with a drum sander.
If you can do that you may as well just use a coupling or use it elsewhere. No reason to save it if yiu have meat. However aometimes fittings are tight and if this is in place, this is a great way to not have to cut out an entire branch for example. Especially if it's service work where you'd be demolishing square feet of concrete to do so. So many stellar uses for this. It's only of those "extra" tools which is nice to have when the situation presents the perfect opportunity.
