Both good and bad. I can get instant erections immediately but the bad part is rock hard erections in my sleep that wake me up and require me to do squats to force the erection to go down. Feels uncomfortable due to the pressure and ligament stretch. Im not going make any claims but I have noticed that my dick has gotten fuller, longer, and veiny. But only if I drive my T levels up.
HCG makes it worse, but Im not well educated with the effect of HCG to know what is happening in my brain. Ive read that a damaged or manipulated Hypothalamus can cause priapism. Its happened several times in which HCG will spike my T and E along with 220mg/wk of T, and my erections are OOC(out of control). At first it was nice but I lose sleep when the erections persist once I go into REM sleep. I never go past a full hour of rock hard erections so its not damaging anything, its just annoying. Other than that, my girl has noticed and cant stop talking about my dick. Its very obvious that I have stretched my dick in all directions, while in my sleep. Yet, there is no proof that penis enlargement is a side effect of high T in a 46yo man. All I have is a happy customer who suddenly started leaving me great reviews, after 20 yrs of service.