I just purchased an Aquacraft MIni Rio from my LHS. I took out for a test run on the pond but had trouble getting it to plane off. I then brought it back to shore and hand launched it with the throttle open and it ran on plane. I figured that the battery must not have been fuly charged to i fully charged it and went for another but to get the same result of it not wanting to get on step. I also noticed this boat had some major cavitation problems. Can anyone help me with why this boat wont plane?