Well, I may be different, but I tend to make better gains when I masturbate MORE. A good jelq routine and masturbation makes my penis happy. And what's weird is I'm getting insane amounts of erections all the time. Masturbating is helping me. I go at least once a day, sometimes several. He just can't get enough.
BUUUUT
Masturbation + Hardcore Clamping Routine = Bad. Your erections will suffer.