I've just installed an Healtech Quickshifter asy in my MTS950. It works great! Sublime between 5000 until 10.000rpm. Below that... between 3500 and 5000 its ok. I don't recommend to use it below 3500 and during 1st to 2nd gear.
Ducati has a quickshifter for the Supersport, which is the same engine.