Pendulum sights are great for treestand shooting because you do not have to judge yardage, but you have to get them set on the ground first, which can take some skill. They are not very good target sights, but some companies have sights on the market in which the top pin can be used as a pendulum, and there are still two pins under that that you can use in target shooting. I like the concept of those sights, although I have never seen a review on them. Also, most models don't have enough fiber optics for me.