when i was on the lake the other day i had a hard time holding a steady throttle. i did have a "full boat" people, gas, gear, etc in this 16.6' Glastron Bowrider. i did not lose RPM's or speed but it would increase the RPM's and speed and i would have to keep backing off the throttle to hit a happy medium and then have to get back in the gas to get back up to a decent speed. it didn't happen suddenly it just starts increasing, but it made more work than pleasure trying to maintain a cruising speed! your thoughts?