I just picked up a used Stringway ML90 drop weight stringer with the fixed clamp system. I've been using a Klippermate basic model for 25 years of more, with the double flying clamps. I've strung the same racket twice with the Stringway machine, and both times have resulted in a much tighter stringbed than I desired. I realize the Klippermate will have some tension loss with the floating clamps, but it appears to be more significant that I would have expected. I strung the first attempt on the Stringway at the same settings I have been stringing on the Klippermate (53 mains, 55 crosses). It came out crazy tight. I hit with it about 10 minutes, cut the strings out, and started over. I set the weight 8 lbs less, 45/47, and strung the frame again last night. It again feels much too tight. I'm using the ruler that comes with the Stringway to measure tension. I find it hard to believe the Klippermate process was that much off, although I only string frames for my son and myself. As anyone else made this change in machines and noticed such a severe change? At this point I'm just left with trial and error, to keep reducing tension on the Stringway and restringing, until I hit a weight that plays reasonable. I've hit with other frames strung by friends over the years, and their tensions have not felt that much different than mine. I'm sure there is a difference in efficiency with the fixed clamps, but it is hard to believe this much change. Not really trusting the Stringway tension I am getting from the ruler at this point.