I've been experiencing some sticky shifting recently, it's not terribly noticable but I am noticing it. I have just a month left on warranty so I'm also feeling keenly for any issues to be resolved. It's a 2010 990, about 15k miles on it. For oil I was using Motul 4T (10-50w), then I went to mobile 1 and really started to feel the sticky shifting, then changed oil after only 1k miles and went to AMSOIL 20-25w, that felt good. This bike is my daily commuter and trip bike so during heavy traffic I use a bunch of clutch, what is the expectancy on the clutch plates? I've heard of some slave cylinders going bad and I'm curious how you diagnose that, what signs am I looking for? At my 10k maintenance I cleaned the pilot jet, it was clean.