I want to try adding a set of adjustable pins to my Bear Grisly. Can someone please point me to a resource that explains how they are used? Are there any changes needed in terms of bow positioning and the like? As I shoot now, I cant the bow some, but I am thinking that with the addition of pins I would need to hold her as vertical as possible. The pins set I have is very old and the pins are moved up and down a bracket by loosening screws. If there are up to date options to what I currently have, I would appreciate being vectored to them.