For what this is worth, I think that Trinity is top shelf stuff that I have never been disappointed in buying.
I have Trinity ported cyls, Stage IV head, reed spacers, single carb, pistons, all kinds of stuff from them on my woods shee and love all of it.
I have Cheetah PV cyls and the pro head on my TT quad.
Dont sell Trinity short. They rock and they know what the hell they are talking about.