Replying to Cork 5 Tips/Advice

I wanna go for cork 5 this weekend, it's one of my favorite tricks to watch and it just looks so god damn fun. I can get the rotation on trampoline but unless I jump really high I always land on my ass or really backseat. I'm hoping that if I do it on skis that won't be an issue if I pick the right jump because the rotation's supposed to be easier while skiing anyways. So any tips on not landing backseat? Also, which safety should I go for when spinning left, left safety (tilt head to left shoulder and reach down on same side) or right safety (Tilt head left and grab opposite side)? Any advice would be much appreciated.