I'm going to start hitting the gym in order to trade 3 lbs of body fat for 3 lbs of muscle. According to my scale I'm currently sitting at 20.8% BF and have 27 lbs of fat on me. Swapping out 3 lbs would leave me at like 18.5% with nice tone, which I think is my ideal goal. So suppose I lift three times a week... how long do you suppose it would it take a female in her early 30s to reach that goal? For reference, I have never been muscular.