Yes Grumpy,
We are in agreement on the specifics
My interest is in the
history - of how ideas originally applied to the professional
turfcare sector could, down the track, undermine long established views about the
correct setting of a reel mower, and the maintenance of machines by back-lapping.
It's a story of engineering marinated in
snake oil marketing.
Yet to be told, and shortly showing at a cinema near you.
The rest is history.-------------------------------
JACK. 
