It may sound counter-intuitive, but sometimes a planing fin such as a Manta, or Doel-fin, or a low mount HydroShield can help with the low-speed planing issues and hole-shot. The ones that mount on the ventilation plate are completely out of the water at higher rpms's and thus no hindrance to top-end performance (with a motor properly mounted).
On my 23 Tsunami with a single '87 225 Johnson, adding a Hydro-Shield dropped my minimum planing speed from 23 mph to 17 mph, and even though it mounts low (on the skeg) my top-speed actually went from 36 to 38 mph because of the added stern-lift. With trim tabs I think I could have gotten minimum planing speed down to 12-13 mph.
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.
Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!
Currently without a SeaCraft 
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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