Do good shoes make a big difference?

[redrhodie]

I'm interested in the difference between carbon and nylon soles, too, if that's what you're asking about. I'm very hard to fit, but considering my current nylon-soled Spesh shoes fit adequately, I expect their carbon-soled shoes will fit the same when it comes time to replace them.

Anyone?

I have both nylon and carbon Specialzed MTBs, and they fit totally differently. Nylon is a roomy 40, and the carbon is a narrow 40.5. You really need to try them on.