Picked these up locally but before I did I had a hard time finding information or more pictures other than there web site. Needless to say I picked up the sliders and installed them. I am pleased to say they are a nice set of sliders and I am glad I found these locally then going with jcr's version.

The install similarly with attachment points at the frame and pinch seam. The instructions call for trimming the seam to allow the slider to sit as high as possible which I like. They attach the the frame with 6 3/8 self tappers and use a cup with a flange which can then take up the differences if you had frame stiffeners. Here are some pictures and if anyone wants any others just let me know.