FYI

I took Joe's advice and swung the mounting block as well as the rod upwards getting the end as close to the center of the string as possible, and guess what? It does work better.......imagine that something working best where the inventor tells you to put it.

I played around with it quite a bit tonight, mounted low, mounted high, and removed and there is a definite difference between the low mount I originally had and getting it up high. (it now sits about 2" from the edge of the center serving)

I also chrono'd the bow without, in the low position and high........I got the lowest readings WITHOUT, and actually had roughly a 1fps speed gain on average mounted in the recommended spot VS bare string.

So disregard my original pictures, they're wrong. I'll try to get some new ones up shortly.

It works very well and I really like it, but I am having one "fashion concious" issue with the STS.......the finish seems to be VERY delicate. Looks like a flat paint over raw aluminum? I have already chipped away some of the finish on the rod and the mounting block basically doing nothing? [:-] And where the rod sits underneath the mounting block the finish is completely scrubbed off after a few adjustments which makes it hard to move in and out and it no longer spins easily when the set screw is loosened.
My advice if you want to keep it looking good is to set it and forget it.
No biggie, I'll just touch up the spots with a sharpie or some flat black paint.......it's not going to affect performance but when you are shooting an $800 polished anodized riser bow?

My suggestion to Joe is a modification in the manufacturering process.....POWDER COAT.