SAPPER, the pro diamond is not a true back tension release. The pro diamond is however my main release for hunting. I also shoot the King George and would use it for hunting if it were not so loud. As far as changing your draw length, it is hard to say. Remember, that technically, your true draw length will never change (unless you grow). Your setting on your bow though may have to be changed depending on how you are shooting right not. It shouldn't be much however. If you can, I would suggest trying one out on your setup to see, and decide then.