Okay so I know it comes down to talent too, But what setup is required in a ski to throttle flip? Same kind as what it takes to double backflip?? What’s the smallest engine size to make a throttle flip happen?
So many variables, so question is relative to the rider
You could possbily do it on a 760cc in a Revovler R or BUN, with a small and light enough rider.
Look at Gabe or TC's kid. they will idle flip a ski with a 701 or 760.