I love my Klippermate. The clamps are excellent. I hate poly because I don't like the string for my game, and, when it comes to stringing, I hate tying knots with poly. . . but you have to tie knots with any machine you get. The "ratchet mechanism" thing machts nicht for me because its easy to judge how much string to put in the string puller once you've done a racquet or two. I suppose from an engineering perspective, I view that as more parts possibly breaking, and the diamond dust may wear out, etc.
I know my gamma floating clamp sucks and I wish I could get my money back.
To Praise, To Bless, To Preach--the Dominican Order