The Yamaha FC3A foot pedal works as advertised, as I use it for my Yamaha MOXF8 with sounds that's able to use half-pedaling (Pre1 Full Concert Grand). You have a bit of travel on the pedal before it actually registers (I have to go almost halfway down before I notice an effect), and the half-pedaling effect seems to go to a full pedal early (Don't hear much a difference between 3/4ths and fully depressed pedal). If there was a way to adjust the sensitivity on this pedal, I would definitely give it 5 stars. It's well worth having one of these, especially if you have another pedal plugged in alongside it, though I would want to test one against the original Yamaha FC3.