I have an old Bear Kodiak Magnum, which I picked up a couple years ago. It is 1960s vintage and in pretty good shape. I have been shooting it quite a lot over the past week or so and get pretty good groups at about 6 yards. That is the length of my basement. Now that I think about it, the bow has never been tuned properly and I should probably do that to get best performance. When I got it 2 years ago, a new dacron B50 string was put on along with a brass nocking point. There is not even a string keeper, which is another oversight. First question, what should the brace height be on this bow? It is 52" AMO, 40#. I just think, if it is shooting so well now, how much better could it get, if it was properly tuned. Any advice?