Just opened my mailbox and found that my GSS starting clamp came in. I have had the Gamma clamp for around 6 months, and have been unimpressed by its quality and holding strength. My first impressions were that the GSS is much harder to open, despite it having one less spring. Also, there is no inserted diamond-coated punchout in the GSS one, the clamp face itself is textured. The shipping was fast and cheap. I thought it was funny when the owner called me personally to thank me for my order, but I didnt mind. All in all I would definitely suggest the GSS clamp over the Gamma so far, and will try to finish the review the next time I string a racket.