Well all depends on what type of hunting you do IMO. Single pin isn't something I'd ever use as a elk hunter on the wet side. Never know where a bull will end up. I'd say a 5pin. Many great companies with these. Spot Hogg, black gold, axcel armor tech. It's all about personal preference an what works best for you. I personally run a 7pin axcel with .019 pins. Pin size is something that is a personal preference for sure.