nope no injuries that I have had
I have ridden all different kinds of boots and bindings...riding burton bindings now because i like the est system (yes I know other bindings can work with the channel)..but I actually find the bindings very comfortable. And the burton boots fit me extremely well. I have over 15 years of outdoor gear/retail/rep experience and have spent a lifetime fitting people properly. i thought that was the problem as well but it doesn't seem to be.
it really is a mystery to me.
I am hoping the foot strengthening exercises will be the ticket.