In my short month and a half of BFR I've solved blisters on my little toes, blisters on the edge of my ball, and blisters between my first and second toe. It's pretty cool seeing the results of my form changing. Well I've got one last issue it seems, and that is a small blister on my big toe. It's near the inside edge, closest to the foot. There also happens to be a pretty good sized callus here that I've had probably forever. The blister appeared the other day after a 5k, and it was under the callus. Today I went for a run, and I could feel that callus slapping the ground, but couldn't for the life of me find any angle to prevent it. So is there something I'm doing wrong, or is it just a matter of this big thick callus being in the way? I know it's probably hard to tell anything without pictures, but I'm hoping someone has a similar callus and maybe has had similar issue with it.