John Robinson was sitting at the bar of a club I was playing 20 years ago. I only knew that because he came over and chatted with me while I was setting up my drums and introduced himself. I was blown away! Anyway, after our first set, I went over to him with our set list and told him we'd love for him to sit in on anything he wanted to. He looked the list over and just said "Thanks, but no thanks. You guys sound great just the way you are!"