My HHA Optimizer 5000 arrived yesterday and I can give you my initial impressions. First, the sight appears to built like a tank. It attached easily to my bow, and old Pearson Hunter Classic that I am bringing out of retirement. Windage adjustment is micro adjustable. Vertical adjustment of the scope is easily done. The green .030 pin is much brighter than the pins on my Spot-Hogg. The Optimizer also has a built in level and will accomodate a pin light and magnifying lens. While I've not yet used this sight, I am confident it will work very well.

I have read many, many positive comments about the Optimizer over on the Archery Talk forums.