I guess a few things weren't clear....I do want to use a pre cured sheet as well,
but Ive found I CAN'T do a one shot because of air bubbles but after reading your post I was hoping that I didnt have to do this in three steps,
step one laminate board
step 2: precure top and bottom sheets
step 3 put it all together.
i use a 20 oz triax which might introduce more air into the equation than when using a smoother glass sheet
as far as the heels go, yes, you gotta put a heel pack under the heels but I was asking if you put holes in the precured topsheet as a way to eliminate air bubbles trapped between the pre cured top sheet and the board