I picked up a used Klippermate recently on Craigslxxx and am very happy with it. I have no issues stringing with it compared to a friend's lockout that I was borrowing. If anyone is looking for a used Klippermate, I saw several for very low prices - $25, $40, $60, etc. I picked up one of the higher priced ones (was asking $80 with local pick up), but it came with lots of extras.
I emailed and asked if they were willing to ship. I ended up getting everything in the two pictures below for what I think was a steal of a deal at $105 shipped.