.nylesA lot of pro's boots have been modified so much they're nowhere near the same as they are stock. I've seen it. It's pretty crazy what some will do, but then again some don't do anything except maybe a booster strap.
Yeah this is a good point. Boots can really be adapted a lot. Take a look at what woodsy is wearing at the moment. Big changes to boots don't often happen but things like changin the flex and cuff angle are fairly common. Using differnt liners and of course footbeds can change the fit quite a bit. Remember too often they will be used as testers. I have fitted some liners before where they were the only pair in existence and they were really temperamental and woul shrink very easily so we had to be so carefull. But I also know riders who are riding in awfully fitting boots as they have never had a boot fitted so don't know what they are missing.