I find that anything LOOK pretty much kills it. The PX Jib are a bit heavy in the heels, but worth the weight. IF you can find Pivot's I'd recommend those more, but don't know if you can find a brake wide enough. Rossi FKS might have a wider brake than LOOK. Pivots have a lighter heel than the PX, bomber narrow toes tend to grab the front of boots nicely, especially with forward pressure closer to maxed out.