Setup procedure used. I leveled pad then leveled prop shaft pad to ground 151/2” shaft to ground 131/4” subtracted difference =21/4” should be 31/2 so I am 11/4” to high if this procedure is right all done on level cement pad.motor2019 mercury 4 stroke proxs v8 ser.2B596234 jackplate cmc 51/2” Manuel motor is set in 3rd hole.Hole shot ok high speed not so good would like to know if this set up is ok before I make any changes.