I currently use mtb pedals and cleats, i suffer some knee pain due to ligamnent damage to both knees years ago.Can someone tell me if changingto road pedals would give me more freedom and possibly help my knee pain. I like my current set up and know my knee pain isn't going to disappear but i would change to roads if i thought it might help a little, don't really know much about pedals and float, so any advice appreciated.