Plumb-bobbing?

Stirred up a lot of controversy on a golf tour last week by my use of plumb-bobbing which I reinforced with this cartoon I did a few years ago for a friend. It was a pity my own putting was not a better advertisement for the effectiveness of the method...

One of the company was a serious scientist and I got this long response with four pages explaining why it couldn’t possibly work…..

But luckily my scientific nephew Tom was staying –and he brilliantly and empirically proved plumb-bobbing does work! You need a putting mat, putter, ball, any book and two people...   

He got me to line up on a putting mat so that I had the flat straight putt absolutely in my sights, and then – without me moving in any way - he put a book under one side of the mat to create the borrow – and lo and behold, the hole appeared to the left of the shaft just as it should!