hahaha, thanks a bunch Geoff! The mistake count that I'd be able to smooth out over a week or two was up to 7 or ten, but I count how I play a note as well as whether or not I played it. There's a couple muted notes or misplays I don't count, but that's because they were too insignificant and any live performance will have those. We do what's called slow playing and starting from a measure or two before a tough spot to perform the riff exactly as written a few hundred times to work out kinks. You'd be surprised how quickly that can have a significant effect on your playing. It may be obvious to some people, but I didn't start using it until this year, and I've been playing for 15.