I couldn't stand the HHA Kingpin. I liked the HHA Optimizer Ultra better. I still prefer a 3 pin sight to the single pin, though.
Just curious. What didn't you like about it?
now it did take me a little bit to set the 20yd and 60yd but when I got I dialed in I can roll that sucker to 100yds and stick a arrow in my block target on a calm day. I am not very accurate at that distance, naturally, but I can hold a dang fine group from 70yds and in. I WOULD NEVER shoot at a deer at those distances but it's fun to practice at from time to time.