I'm with Graylight...I have exact same sight, except I had my cage custom built with the first four pins .019 and the last three .010. Shortly before we left for Quebec last year, another sight company came to us and asked we shoot their sights. I've been a spott hogg guy for as long as I can remember, but thought I'd try this "new". Long story short, I gave it the durability test (dropped my bow four feet straight onto the sight cage and bent/broke it.
Brandon, our ad guy, came in and wondered what I did. I told him and showed him the demonstration, then I grabbed my hogg-it, and repeatedly slammed it against my desk (he looked at me like I was crazy), strapped it back on the bow, and went out and stacked arrows at 40 yards behind the office. A week later, and few thousand miles of travel later, I arrowed my first caribou with the same setup.
Why shoot spott hogg, cause they're tough as nails and they just plain work. Just my opinion...