on the bulk heads, imo you should peel ply the 2" sides and bottoms.plastic and peel ply need/holed in a lot of epoxy, and Burt knows that.
so he has you peel ply only the parts he knows you will bond to other parts.
all to often i look at the final part and think the peel looks better so i peel the hole part:( remember, you do not want the glass full of epoxy, just the fiber.
i use the plastic to wet out the glass,then cut to shape, then place over the part,squeegee the air out, remove the plastic and input peel as needed(and in most cases you'll need to add epoxy just to get the peel to stick.
the way you stated you did yours sounds like they were light and not over done:cool: next try tin foil for that crappy little layup behind the ip and the lower layup on the upper forward longeron(o wait, that one in in 2012).