Yes.......Sometimes you're the windscreen, sometimes you're the bug! I remember playing (for the morris) in the cold and having to run a session afterwards and thinking that I couldn't be playing any worse so I soaked my cold hands in hot water and used the hot air drier and the effect was amazing, I played better than I had in ages, so I guess warming up is important, also, the better you are anyway the less it shows if it's not working today (whatever IT is). Some players never seem to make mistakes and seem to be almost clinical in their accuracy (Andy Cutting) others (John Kirkpatrick) make mistakes from time to time but are good at covering them up, perhaps this is what being professional means!