hello guys, the boat:1997 stratos 219F 19',3 " 91 wide 175 hp intruder with 21-4blade trophy+ 3/4 load 54mph gps at 5800 i think pretty good .questions about pad to prop shaft distance:the pad is like a V so bottom of V(lowest part) ? and it mesures 5 inch and only one hole left so that would be 4 1/4 is that going to make a difference ? and any negatives to get it higher ? thanks