I also was a single layer Triangle guy forever. Then the quality and consistency from tip to tip started varying wildly, so I started pressing them to overcome that. Recently even that solution didn’t solve the issue to my satisfaction, so I started looking for a new choice.
After a lot of research and talking to other players I know and respect, I switched recently to a layered Zan Hard. Atlas Billiard Supply is an authorized distributor so I could trust it wasn’t a fake, they’re $23 a pop. So far a month and a half in, I couldn’t be happier, 0 mushrooming, great playability, no glazing. Also per a trusted friend who has been using them for years, he says the consistency from tip to tip is always excellent. So far, so good.