This probably could have been included in Martees question about the use of mirrors.
If I can find a mirror large enough, I intend to use one to improve my swing. Would monitoring the twelve positions identified in chapter 8 of TGM be the way to go?
If so does any one have better photos to use as models? In particular some down the line shots of those same positions. Some down the line shots would help me with my posture, hand, and shaft positions I think.