I disagree on almost everything here. Been using Ultraskins for yrs. and they don't delam,glaze over and they hold chalk as good or better than any single-ply tip i've ever used. I did have one cheap layered tip come apart on install. Was cheap tip from Barringer's that fluffed on the lathe. Joe blamed my installer. Wrong. Tip was crap.
Yet when you see it occur it's often not a shot when excessive cue ball speed is needed.
Is the glue/adhesive that Mori uses, different than Ultra's?
It's just hard for my mind, that's run auto/truck repair shops to remove logic from the materials at hand.
When you add something between layers, and it's surface area is increased because of the curvature, there's interplay.
Yet.
Some mfg may be using a gluing, that has a grab/like leather to remove slippage.
Or maybe that $20 piece of chalk is worth it.
I just watched Shaw run the last five and never chalked once.
Tip? Chalk? yeah, but Shaw hits the Middle of the cue ball like 90% of the time, chalks not needed when your center punchin' whitey.