strick,
I started a 2.5" with a 30" setback. This was according to armstrongs suggestion of 1" up for every foot. I have moved it up 2", to 4.5", and it seems to be close. I might be able to move it up another hole, but I need to get some time on it in the open ocean before doing that. I am close.
It's just that everything you read says 1" per foot, and that is definitely wrong for this application.
Thanks for the feedback