Have any of you guys ever lost some of your ground speed after having a new hydro motor installed? In second it max's out at about 5 to 5.5 where it used to go 6.5. Only goes 14.5 down the road used to run 17.5. Tried the cable adjustment trick and gained some. Those are the posted speeds after doing the adjustment. I moved the cablt to the hole closest to the pump and now it just seems like there is a big dead spot on the top end of handle movement.