HHA has been around a long time and is right there at the top of the list as far as adjustable single pin sights. Have never had a problem with any of mine the past 20 years or so. You really can't go wrong with any of them they make, I'm shooting the optimizer lite ultra right now. Its nice having a sight I don't need a tool to adjust. The regular optimizer light works just fine also. One thing I would shy away from is their XL size housing, they are a bit big and bulky for my liking. The trophy taker option line is a very cool new concept, Dan Evens has a really cool idea there but boy they are $$. With today's fast bows I've gotten used to leaving my pin at 35 yds on spot and stalk hunts. Pretty accurate from 10-50 yds after you practice that way allot. And for treestand and ground blind hunting they are hard to beat, pins are very bright with all that fiber optics.
Good luck!