haha yea I know what you're saying. The company that makes Pro Complex is the one that I recommended in my last post.
There isn't anything inherently unhealthy about having a ton of LBM, but you're right that after a certain point it almost doesn't matter how flexible you are you will become muscle bound. Personally though, I don't really find that to be a problem that many people, outside of pro bodybuilders, will have to face without AAS.