Advice for placing fins on a twin fin surfboard

[gede]

i am making myself a twin fin surf board and need some advice on twin fin placement!
is it ok if i place the fin at tail = 5 3/8", front toe in = 5 1/4?
because i heard this placement is fast on the line but poor on the turn.

[jaffa1949]

See my reply on the post on the other thread