ok try this for the 7, open your stance more for your 3 and throw it a bit harder, then pencil it, you should get around. its penciled but you have the feel, then slowly unpencil it. Corked wise I think of it was a flip, I just lean a drag my hand on the lip and keep my skiis open and try to stay flat. I am not good at corks tho, I only land like half of them and I have to go really big to do it.