So I bought new boots this year, Dalbello's with intuition liners, and one of my worries is cold feet. Ive skied them probably 7 times and twice my toes were numbingly cold, although I realized that as long as my feet are warm when I put the boots on they seem to stay warm. However I haven't skied in anything under about 20 or 25 degrees yet. I mentioned this to the person who fitted my boots, and he recommended letting him grind down/do work on the footbed (the custom cork ones) so that they are a 3/4 length of the foot to increase circulation in the toes.
My question is do you think I need this (or should the intuitions keep in the heat as long as my feet go in warm) and will this effect the performance of the boot at all? Unfortunately I won't have a chance to test the boots in freezing cold temps before I go back to school (far from the ski shop where I got the boots).