Once your T levels are at normal female levels you should not build any muscle other than lean muscle. You will not build muscle like a normal male would, it's just not possible. I've been lifting now for a few months and the only thing I'm doing is toning up. That's a lot different than putting on boy muscles. I've been on HRT since 93/94 too.
This is an extract from an email a friend of mine passed on from
Bodyspace.bodybuilding.com"The primary concern women have when it comes to weight training is, "I don't want to get big or bulky." We are here to tell you that you won't! The hormone testosterone is responsible for the large increases in muscle mass seen when men lift weights. Women's testosterone levels are a fraction of men's testosterone levels. Normal testosterone levels in men are 200-1200 ng/dl while 15-70 ng/dl are normal in women. As you can see, men's testosterone levels are SIGNIFICANTLY higher than women's. Even if a man is at the LOW end of the men's normal testosterone range (200 ng/dl), he still has more than twice the amount of testosterone as a woman at the HIGH end of the women's normal testosterone range (70 ng/dl). If we look at the median or mid-range testosterone levels in men and women, men = 700 and women = 42.5. So on an average, men have 16.47 times more testosterone than women! It is clear that women do not have the hormonal support (testosterone) to gain muscle mass like men. Therefore, the fear of becoming big and bulky and looking like Arnold Schwarzenegger with a ponytail is unwarranted."
and...
" Now you may be saying, "I have seen some women bodybuilders who are very muscular and look similar to men in their build." The real reason they look like that is they are most-likely using exogenous testosterone injections and/or other anabolic steroids. When women use exogenous testosterone/steroids they may show signs of hair growth on the face and chest, increased muscle mass, a redistribution of body fat from a female pattern of storage to a male pattern of storage, deepening of the voice, and other effects. The point of saying this is that unless you are on exogenous testosterone or other anabolic steroids, you will not become big and bulky from lifting weights. This is not to say that you will not gain any muscle, you will, but you will not gain muscle like a man. Instead, you will become toned and shapely."