I have a 2004 skeeter zx225 with a 225 vmax hpdi mounted on a bobs hydraulic 12" jack plate and the engine is mounted in second hole down and the boat is a little slow out of the hole with two people full of fuel and tournament gear I'm running a 25 t1 and the boat was running 5700 rpm wot was 68.7 mph so I raised the motor to the third bolt hole and I'm running same rpm 66 mph but a little faster out of the hole and prop to pad is 3 1/2? How much higher do I need to go or put it back where it was at?