I am so sorry about you ill-health Solar. Hope all is much better now :)
Actually, I do take regular snapshots of my stats (putting) and can even tell you that for the month of Sept. alone my avg. for one putt is 51.34, Two putts is 46.13 & three puts or more is 2.51. It took ma a LONG time to get better at putting (and I'm not nearly there yet) but my old stats definitely do NOT reflect how I currently play. and I know many other players have complained about this.
However, in general, not everyone here is an engineer (or excel geek) and knowing such stats would be impossible ... hence my suggestion to WGT to allow many others to understands their improvements and how they are playing currently.
In addition, this would allow people to see opponents as they are playing now.
Just a friendly suggestion to WGT for a product feature improvement, thats all :)