Hi grumpy, as I have said, I agree with you in principle, but what I'm saying refers to professional greenskeepers "touching -up" between spin-grinds.

Most of them I know personally have 2 or 3 spare reels on hand, one in the machine, one on hand as a spare, and one at the engineer being re-ground...they also have spare knifeblades ready to go at any given time.
These machines are used on Bowling greens at very fine cutting tolerances and no foreign object damage. wink
cheers2

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin