Glad it worked out alright :D
Once you've got over the first song or two, it's usually quite refreshing, isn't it?
The worst (scariest) one I ever had to do was in my last band. We were a two guitar set-up where I did the lead vocals. The bassist couldn't make it, so we decided to go as a three-piece, with me on bass and vocals. I can play bass ok (ish), but bass and front-man is a different kettle of fish. We did two rehearsals - first was dire, second not quite so bad, but certainly not giggable. We decided that "something'll happen, it'll be alright on the night..."
I figured out I ought to listen to the Police for a few days - and discovered how Sting managed it. When we turned up, I showed them in the soundcheck the approach I was gonna take - and the other two got really scared :lol:. In the end it was the best gig we ever did in that band!
... I dunno, it takes you right out of your comfort zone, half the on-stage cues are missing, and you're worried that you won't be able to deliver for the punters, but somehow it seems to work out and you learn new stuff about the line-up (and yourself)... hope there's still room for Martin, with your new-found skills, when he gets back! :lol: