Lot's of disagreement on this subject. Some say it doesn't work, others (Rocco) use it well. I believe it works very well since a scratch golfer showed it to me years ago.. My take. (This is for bentgrass greens and not that awful stuff called Bermuda)...
Flat greens it's dead on.
Uphill putts also dead on.
Downhill putts also dead on.
Uphill or downhill putts with a big side break doesn't work at all.
Golf Instruction & Help A Golf Lesson on Plumb-bobbing How to Improve Putting by Plumb Bobbing | eHow.com TEE TIME MAGAZINE Just plumb crazy? - The Boston Globe
What's your take and do you use it?
Give your honest opinion and
support it but don't bash those of us who use it...
