Update , while dartons claim of not haveing to be tuned is somewhat valid in that the bow will shoot well as long as its in the tuneing marks at the specified setting c and 3 I belive , hoyt claims the same thing and myself and others have found that not to be correct the hoyt system is a great system but needs to be treated more like a 2 cam bow . While the two systems are similar they are very diferant also the darton has a round excentric up top but hoyts does not .