So I got a little 14' speck fishing rig from an old northerner a few months ago. 25 hp 2 stroke Merc long shaft, but the cavitation plate sits about 2 inches below the bottom of the boat. On plane, water rides up the back of the boat on the sides and up the shaft of the motor so I think it's too deep in the water. Any recommendations on manual jack plates? I'm thinking if I raise the motor up so the cav plate is at least even with the bottom of the boat it should work but would like to get something adjustable so I can see what height works best. They're a little more $$ than I thought they would be, seems I could make one out of some good aluminum angle.