I have no problems as you speak of, but I did not go with the rule of 1" for every 12"
I just measured the 25" needed for the motor and mounted the bracket.
If I have the motor trimed up high and get into some swells I will porpose, but I then just lower the motor and it digs right in.
Hers my boat at rest in the water, Bracket is at 25" right to were the motor hangs.