i dont enjoy 55 to 70 mph porpoising. i can drive thru it and its perfect from 75 to 102 mph. i wonder what size tab i should use so i can cruise at 65mph. im happy with my propping and speed just want to settle the boat at midrange. i noticed a post from mm walters but cannot email.

30' Motions don't normally Porpoise very much, Spectres with outboards do have a tendancy to. I think there are probably changes you can make without going with a tab that is very dangerous. Call Larry at Xtreme marine, he has rigged more Motions than anyone. 954-610-2260, I'm sure he can help.