Originally Posted by
mntlion
1) add 2-4mm of firm padding to your foot, where you want the shell bigger
2) heat up the shell in that general area, for 5 min in hot water (to the point that you can dip a finger into the water, but are NOT happy in it, but NOT burning you) Both inside and outside of the shell
3) Put your foot, with all the padding on, into your liner.
4) Stuff all that into the shell, make sure your heel is back in the liner, and the liner is back in the shell, and then buckle the CRAP out of the shell (like MAX out buckle tension) Let cool for 10 min.
5) remove foot, and all extra padding, and give your foot a chance to relax, and try on again.