Thought I'd try V power.

[nick crisp]

Quite possible I suppose, but have to say I'm convinced that it works for mine. A work colleague has recently bought himself an SRAD GSXR600, and says he notices the difference too. He reckons he's even getting better fuel consumption, although he hasn't checked this properly yet, so we'll see. Plus what the two mechanics I know have told me (both totally unconnected with each other, and both with plenty of experience) and what I feel I find, that's enough for me.