The Proto rides a little longer due to its blunt tips. I feel like the 157 is going to be a bit big for you especially if you want to get into park. I havnt looked at the waste width of the 54 but I fit size 11 boots on the 57 no problem. Take your boots and bindings into the shop and see if you actually need a wide. I suspect you dont, especially if youre boots have some sort or reduced footprint tech.