I think the pendulems where good back in the days of 200 fps bows.Today,I see absolutley no need for them.With proper form,if you bend at the waist and shoot a fast bow,you will get no advantage using a pendulem.I used a savage pendulem max and a Trophy ridge mantis about a month ago.There was no difference from beneath my treestand out to 32 yards between those two sights and a HHA 5000.The only thing you pick up using a pendulem is some extra noise(atually the savage was pretty quiet).I used all three side by side and couldn't see any advantage from a pendulem.Just bend at your waist.