Oh man. I went from a rear Profile, to a FFW setup. The freewheel majorly munched on my jeans, and I was actually stuck! This was in a busy part of Coventry, next to a bus stop, with people everywhere!
In the end we had to loosen my wheel, pedal forward (munching my jeans more!) so I could get my leg inbetween the crank/frame, and then pedal backwards so I was free!
Sucked. Still like my FFW though, made my bike lighter.