well right off the bat his stance is pretty off, his shoulders are open causing his legs to wanna match up with his upper body and putting him on his heel edge so he slides out like that. he also needs to bend his knees a little more to help with the landing. when he lands itll be easier for him to stick it if he comes down on his toes.
you can really see how open his shoulders are by the way he has his back arm, i like to call that the "mystery date" because he has his arm out like its around someones shoulders. the best way to fix that is in his general riding since if he hits jumps like that, chances are he rides around like that too. as much as he'd probably hate by the sounds of it, all you can really do is keep reminding him to keep his shoulders closed when hes riding when you catch him doing it.
Last edited by Cr0_Reps_Smit; 02-05-2012 at 08:30 PM.