A very general "rule" is to keep the heavy stuff down low and work lighter as you go up. It all depends on what you wanna use, and there is no correct answer for that. The thicker the hull/bottom is the lighter you can go on structural supports, theres so many variables though we need a bit more info on what youre thinking to use.
I use about 1sq ft. of CSM a year with epoxy, sharp outside radii where 3 points meet is about all i do with it, like a console corner or something like that. 1700 is about all you need, but it is harder to handle that a 1708 or whatever, it really likes to deform so it takes some careful handling.
Skip the heavy roving altogether. The finish cloth wont really eliminate the print through, but it does help with fairing as its alot easier to fill the weave than the biax. Sometimes you can highbuild right over it depending on what kinda finish u want.
For what were doing 45/45 is all thats really needed. If you have some 0/90 or uni though, keels, chines and stringer caps (long stuff) can benefit. Totally unnecessary though.
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