Replying to Off balance

Can new skis put you off balance in the air? i was riding 161 1080, now i'm on 170 msps, and the msps are sooo huge compared to the 10s. once i put them on and when i would spin i'm eating shit on everything, no matter how big or small, 3 or 5 or whatever, i fall to the opposite side that i spin to. could it be my new skis?

and oh yeah, how do you get rid of severe shin bang? like i've got it now, and every time i put my boots on even for just a short day of skiing around i get it bad