My last couple rides, which involved some periods of slow first and second gear twisty mountain roads, I noticed at slow speeds when I let the clutch out or feather it in first, sometimes second gear, I can hear a single knock or clunk sound. Not Horrible, but nothing I experienced on other bikes. Sometimes it can be heard even without clutch use, just putting along and going from leading to trailing throttle. But most noticeable when gently starting up in first gear and letting the clutch out. Anybody heard this, or are my super-sensitive ears cursing me again?