so i have a 1x12 brown bandmaster cab being built by mather cabs. the baffle is spec'd at 1/2" birch ply but i wonder if, given the rather large size of the baffle for one 12" speaker (same size as the classic 3x10" baffle), the baffle will be able to support heavy 12" speakers like celestion alnicos, and maybe even something like a D120F. is 1/2" the vintage-correct thickness? any pros/cons to going thicker? thanks!