hey DLD i have a theory that can be very good for tunica gains. i noticed that when i do constrictors for about 40 consecutive minutes afetr i unclamp i get into an A-strech which my penis is about 50% erect and i notice it stretches as good as if it were flaccid. my theory goes that after 40 minutes of constrictors the tissues and chambers and tunica are temporarily weakened form all the blood stretching it for a long period of time, during this weak state they are very stretchy. so i think doing DLD'S tunica routine after about 40 min or more of constrictors can give amazing gains