when you pop, jump up and forward with your hips(thinking about jumping through a hoop) , your hips are likely late in your rotation causing you land backseat. Remember keep your eyes on the horizon too.
ski though, I like them all. each is good for something.
right now i got some lib-techs that are stiff for everyday skiing, and some pimps for powder/mash potatoes/whatever else i think they're good for.