I have a 2006 F-12X and I have NEVER flipped mine while riding, it always stays rightside up and i do some pretty stupid stuff. I FALL off plenty doing those stupid things, but hey, its water, we are supposed to get wet, right? (note, falling off at 60+MPH CAN cause a concussion, been there done that) Anyways the only time i have ever had it upside down is when getting back on the thing with a passenger or 2 because we don't balance well enough. It happens. I think its impossible to flip this thing when its on plane, or under power, i have done everything thinkable to do this, and have failed every time to end up upside down. If you get it leaning really hard in the water while moving, open the throttle up, turn into the lean and it will come out of it. Of course you have to have the guts to do this, most people will just let go and fall off.