RE: Ferguson or Welch?
I don't know about videos, but bryron fergonson is one heck of a shot, at least a trick shot. Sorry. I would however recommend reading "instictive shooting" and some of the other books by G. Fred Asbell. I am not a fan of the swing arm stuff either, but the books might be more help than the videos.
Just a thought, and sorry if this doesn't help you at all