The kinesis pedals require the foot to move which is requires a lot of energy which produces a lag of about 1 second between you wanting to press a key and pressing it with your foot. This lag turned me off pedals, but in theory it sounds great.
I felt that some kind of wireless, in-shoe, toe-activated device might be the best option. But that's not really very practical!
Actually, in a situation where I can't require significant force, the 'upshift' almost seems like it would be more comfortable.