You are a grown man at 6'2, 200lbs, and 31 years of age. (wussy) ha ha! I don't think you will have any problems with a 70 lb bow. Go into your local pro shop and the first weight they will have you try to pull back is the max weight 71 lbs. That's when you will know. I'm 5'9" and 178 lbsand can pull back 65 pounds easily. 71 lbs is still a bit hard but I should be able to get there pretty soon. I'm just going into my 2nd year now.

You can DO it! lol