I have a 21xdc ,250 pro xs sportmaster 1.75 running 1/2" below pad . with a 29 promax. i lowered the sporty trying to get more bow lift because of the heavy ultrex . 77 mph loaded at 5900 rpm. i know i could get about 3 more mph with a tm over a sporty at below pad , the sporty has only 200 hours on it so i like to keep it for now. would a 30 bravo have more bow lift than the promax ? and more mph.