Replying to Ski Boots Killing me...

Gah I'm starting to regret not sitting in my boots for longer than about 10 minutes... In the shop it felt real good, but now after I've started taking it out to the slopes, I've noticed my boots don't fit as well as I thought... After a few hours of skiing, the outside side of my arch under my foot starts to cramp up and hurt. Any ideas why? I'm getting some pretty bad heel lift and also I'm flat footed... Think that's the problem? Any ideas on how I could make my boots fit better?


In case you're wondering, my boots are the Head Raptor 75 - they're a junior boot because I have small feet and it's a race boot, but since it's a junior boot, I get some pretty good flex out of it so I don't get shin bang unless I land backseat too much. Maybe the fact that I'm hitting jumps with a race boot might also contribute to the pain?

Thanks!