I will be trying this hypertrophy experiment during the month of May. It's time. I have shrunk down to 152 lbs.
For me this is just about adding healthy weight and feeling a bit better, not about looking good in a bathing suit. So, I will stop well short of becoming muscle-bound. I don't have any desire for that kind of body. After the initial hypertrophy it becomes time-consuming to maintain, and the decrease in flexibility would be no good for tennis.