I have a 2018 Tohatsu 30hp 4 stroke so I don't know if you have the same gear ratio lower unit. But I'm running a 12 pitch powertech 3 blade TLR on a 15/44 alumaweld that is a little on the heavy side for its size. With a two person full fishing load I run 31-32mph with decent holeshot turning 6200 rpm. By myself I run about the same hitting the 6250 rpm rev limiter. I tried a 13 pitch SRA but holeshot suffered and top end really wasn't any better. Maybe one day I'll try a 12 pitch SRA.
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