I have attended shooting clinics by G. Fred, Rick Welch and Rod Jenkins.
I enjoyed my time with Rick (He's a great guy), but the only clinic I can recommend is the one by Rod Jenkins.
The others didn't tell me one thing about how to control target panic, and I had it bad.
Rod gave me a plan to overcome my TP.
When I got the DVD from Rick, showing me shooting from all angles, it made me sick seeing how bad I was collasping and plucking my release. When I asked Rick what I could do to stop plucking, his exact words were "I can't fix that, you've been shooting that way for 30 years, only you can fix that".
Three months later I called Rod. He helped me understand what back tenison is, which is the only cure for collasping and not plucking the release.
Rick's advice when at full draw is, "Hold, Hold", before releasing. I now believe the word "hold" is not at all accurate. You never hold on the way to conclusion.
Rod's clinics are the best, and way more bang for your buck.