Good video man, underrated for sure but I think you’ll be happy to know that you ended up at the top of my recommended feed, I didn’t have to search to find you at all
I think you should focus on posture/hop. I've been riding a lot of switch foot lately and when I'll rotate I'll notice foot slippage and not implementing the tuck. I can rotate both ways reg foot and almost both ways oppo foot. But I think my videos/ website blogs on posture and how to hop will help you. If you learn correct posture and snap it correctly the feet should be secure to the pedals with tension in the legs, because you are compressing the weight into the pedal and as you explode your pulling the bike upward so the pedals should be compressed into your feet throughout
For some riders that may be the case! From how I ride I'll change my grip for different tricks; a barspin versus doing a turndown. Perhaps a wider grip would allow you to hop higher