Echo the thoughts of godelescher, I've been following this thread since it started. Really interesting read GC. Great work and thanks to others like Genorb with all the research.
Just to let you know, I also shot a 52 at St Andrews back in November in the Wk 47 Multiround Open. I thought at the time it might be a record low for StA. Still only good enough for 5th place in the tournament though...
2011 Wk 47 Multiround Open Leaderboard
Also, while I'm here, jimbean346 made a putt of 231ft, replay from him profile is here:
jimbean346 231ft putt
Cheers, all the best.