The G5 peep is a good peep. I also use Tru Glo sights but I prefer the vertical 3 pin rather than the ones that are horizontal in the sight. (horizontal covers alot of the target in the sight in my opinion) Alot of what you're after you will have to decide if it's for you. A D loop is what you'll want if you're going to use a release. I have heard of some shooting from the string with a release, but I've heard alot of weird things that happen when doing that such as the arrow having a weird flight but then again, that's not the norm I don't think. D loop is the best option I would think. There are a few kids here that are 6' or taller even and your age so I get the picture. I would strongly recommend that you actually shoot the bow or at the least, be able to handle it and draw it back before buying one. Buying blind isn't the best idea unless you're willing to gamble. Basically, there are no "bad" bows out there. Sure there are a few that aren't as good as others in certain price ranges, but bows have come along way in a matter of 5 years even. Now it's all about speed. I'm not concerned with speed at all. In reality I'm only gonna take a 15-20yrd shot .... max of 60 feet!!! Why would one need all the speed to shoot 60'?? I don't know. As to how long a bow will last, well I don't think anyone can really confirm that. I've seen bows brand new fail in a matter of weeks. I've had one bow have limbs fail but it's a few years old and it is known to have this problem. Other bows I've owned ... no problems. Alot would have to do with how well you take care of it and avoiding the dreaded dry fire by yourself or someone else. It happens. I think Martin makes a good bow, I know they stand behind them and I really like the one I have. Although, there are others that are ready to shoot that come with good sights and such. Keep doing research before pulling the release on a purchase. Good luck in your quest for a NEW bow!!