Orest Filipov has tested new Saxophone heavy neck screws from KGUbrass 

I hear a huge difference on the tenor but on the alto I dont really hear much change at all. It could be because Yanagisawa is already a modern horn. Sounds great I will be buying one for my VI immediately!!

You are a killer sax player either way. Great playing.

Bigger, birghter, faster response on both. Huge difference for a tiny thing.

The gemstone looks like either a lapis lazuli, which has pyrite in it, or sodalite. It's hard to tell in small size. Second one looks like turquoise. I would think the density of the stone makes a difference. I have to wonder since seeing this if perhaps having certain of polished and shaped stones in place of the pearls might influence the tone.

I heard a big difference. Tenor. I like the heavy mass sound.

You have a lovely sound there my friend but,I must be honest I couldn't truly say I could hear much difference at all.

Hi there! Which screw has a heavier mass, may I ask?

It is all in your mind and if it did change the sound it may not be a better sound! You would ned to show the sound waves to prove any difference.

Sorry Never beleive that a screw will make a difference in sound,,specially the way that you play,,you don t need a fancier screw,,lol Very nice playing,,no doubt,,and no doubts that that this screw makes no differences to be honest. Regards Mario

A positive improvement!!! More equality in the overtones. Both horns. Nice.

Made no difference. You sound great though.

Seems louder and fuller

Seems fuller. Or maybe you are taking deeper breaths.

It got brighter with the high mass screw