You are right. That drummer was incredible. Mike was his name I also believe and I don't know what happened to him. He was a very fast and intricate rock drummer. They had two or three Conga drummers as well.

I would say that you can find the YouTube of that Woodstock performance, the performance where Santana broke into the big time. If not for that break where would Santana be today? No one knows, of course.