Curlylion: I've only done TTTT once a week, but like I said, I'm new to CG and playing around with it. Try it every 4 days or so and play it by ear from there.
Also... you're going to hate me.... my husband is about 70% bald and has been since he was 19 or 20. He shaved his hair off for a fraternity thing and it just never grew back! The good news is, he'll look the same at 80 that he did at 20.