In reply to HeMa:
Everything ^^^ HeMa said above ^^^
Plus and this is key as i'm quite similar to you, in that i have massive calves and have had a lot of trouble to find a boot that would fit in spite of visiting a number of well known boot fitters in France. Timing is everything and by that i mean you really need to be visiting the shops probably some time between Christmas and February. As if you are an unusual fit or size stocks in the shops will be limited. I learned, the hard way, a key part of the issue i had was that i would typically take my ski holiday in March by which time lots of the stocks were depleted, so the fitters just didn't have the selection left to offer. Most good boot fitting shops, even a major one, is only likely to have one or two individual pairs of boots that will fit you once they're gone they're gone. Cause remember most of these shops will be small independent traders and the cost of their stock for the season is massive.
So yeah find a good fitter, call them to see what their stock situation is and get there early in the season.
Post edited at 16:02