Pendulum sites are productive!
I have used several different types of sites on my bow and pendulum sites are a good choice if you dont want the hassel of guessing. I have used pin sites and they are also very good, but you do have to somehow range your target. On the other hand I have used Keller, ABC-200, Predator, and right now am using Impact Archerys, All Terrain Pendulum site. I have never had any problems using any of these sites to bow hunt at any time, nor has anyone else that has actually used a pendulum site to hunt with. I think that the people that say pendulum sites are worthless are people that have never tried them and just dont like them because of all the hype people give them when they have never used one. If you want to try a pendulum, Buy One! If you dont like it, take it back and try a pin site.
Pin sites are very good also but, I LIKE MY PENDULUM BETTER!
Just my opinion.