2500 RPM Just feels lean.

[Ulvetanna_imp]

You are not imagining things. Once in a while the timing will retard a bit more than usual leaving a stop or lugging it. It's surprising, the bike just doesn't pull away like it usually does. Not often, but yeah, it happens. When the clutch switch is out, the timing changes. Yes, it's like that on some bikes. My GSX-R 750 has a very noticeable change at low RPM when disengaging the clutch. ECU sees the switch is released and retards the timing. Feels like you rolled off the throttle, right, or bogs just a little?

I think a reflash would cure all that.