I don't necessarily trust any of that sizing being done in shoe stores or shops. I am a 10.5. That's what I wear in streets, boots, dress shoes, tennis, etc. I do NOT
measure as having a wide
foot on any of those measuring devices stores use. However I cannot squeeze my foot into a 10.5 shoe or boot that isn't at least an E width and I prefer a EE/EEE for best fit. (…I believe I have a very high volume instep. That's part of that issue.)
I had a HUGE amount of foot pain in the beginning. Mostly along the balls of my feet and some across the top and instep. It was severe enough that had it continued without any relief? I probably would have given up on boarding altogether!
I went thru 3 pairs of boots before I finally settled on the 32's as the most comfortable fit. Even so, that only made things about 40-50% better comfortwise. Part of this pain problem was caused by just being a NooB and thinking I needed to strap my feet in WAY too tight to both the boots (boa's) and binders! At first I could barely manage to keep my lead foot strapped in for more than a run or two before I needed to unstrap, loosen, and sometimes even remove the boots entirely to eliminate the pain.
I got some good advice on the hill to wear the boots a bit looser than FULL ON cranked down and if I needed a bit more locked in feeling for riding? Go tighter on the bindings instead, since they are easy enough to loosenn a click or two between runs anyways. That improved things maybe another 10-15% immediately.
The final advice that did the most for relieving my foot discomfort was to spring for a set of custom molded foodbeds from Sidas. Like these Here!
I was skeptical because those thin looking little insoles cost just as much as my boots did. ...I wasn't willing to spend that until I got a guarantee from the manager that if they didn't help, I could return them. (I didn't!!) These made a World of difference in my comfort. I won't ever be without these in my boots again.
That got me up to 90-95% pain free. Now I think maybe the last 5-10% just needs to be chalked up to being an old fart and 50 years of abusing my feet!
So, If you haven't done so already? Get a proper heat molding of your boots liners done, and then get some sort of quality after market insoles. If not an expensive Custom set like mine, then one of the better commercial insoles like superfeet or better yet, Remind!