I am currently wearing the cb -6000 as self control for masturbation control. I only wear it in the evening (mainly b/c of my job and b/c I am masturbate only at night). I am currently have the largest ring (next one down causes discolor) and second smallest spacer. When I get erect at night (4-5 times last night) the penis "pulls" the CB forward and my testicles out (causing a burning feeling.) My penis does not fill the the tube when erect at night but like I said it is push put of the tube and the cb forward. What do you think needs to change?