Performance twin fin set up

Hey guys,
So I’ve recently shaped a few performance twin fins kinda like the twin by DHD, that shape that most big board brands have done as they are very popular at the moment…
I’m wondering if anyone could point me in the right direction for the fin placement on these boards, boards range from 5"5-5"9 . And also what the cant on the fins are? Will be installing future plugs :slight_smile:
Cheers legends