On the Buddy Whittington DVD feat. John Mayall's 70 B-Day and Friends there are times when Clapton seems to really be enjoying Bud's playing.
I heard that Colin Meloy and Chris Funk have used Dr. Z Amps. I also noticed in some vids of shows Colin had an AirBrake on his Fender combo and have also noticed in the past Chris had what looked like to me a small Red Z cabinet... or maybe it was another Red cab.
I'm not positive but I think that Chris Funk was or is on this forum.
I'm Rick James...