Master boot fitter dropped me down 2 sizes a few years ago and fitted me perfectly w/ some Impact Pros. With some home tweaking, It has been bliss. Those are wearing and my feet are super hard to fit. Cuff alignment set at the extreme on both boots. Canting also done on inside back of heel....footbeds etc......... just to give an idea of how hard it is for me to stand flat in boots. 4 hours of work w/ boot fitter in summer of 2009, to get my initial set up.
I'm standing here comparing my right foot to my left in my new Salomon Impact 120 CS (Custom Shell). You see my right foot fit perfect in the boot. Or so I thought. I just heat molded the custom shell of my left foot bec it had "Issues". Salomon has nailed it........... I can't believe how comfortable and tight I can get this boot w/ ZERO pressure spots. I just heat molded the shell in boiling water as per Solly instructions. Had already done my footbds, canting, cuff alignment, etc............ Just boiled the Kaprolene and BAM........ it fits like a glove. Changed my mind and now heating water to do my right foot. Easy Peasy!
This tech is a total game changer for those of us w/ abnormal leg alignment, bow legs, knock knees, etc........... Don't let the initial fit discourage you. A good boot fitter can get you in to the proper shell size, after that it's a no brainer and best of all you can tweak it at home if you have basic "skills". Take your time, read instructions, do research on canting and alignment and most of all start w/ a good boot fitter who has dedicated time for you. They will get you in the ball park and explain how your legs are shaped and how to get your boots flat on your ski. You can do the rest.