I am coming from Vortices, and while they are untouchable protection wise (ask me how I know) I can't stand the bulkiness and the sacrifice of comfort any longer. Would appreciate pointers on fit (if different from Vortices). My perfect fit would be a 47.5, so I buy 48s and tighten then as much as I can but the sole doesn't feel snug enough. Which boots feel lighter and more comfortable - for track/racing. Thanks!