I guess I CAN say that I never really had a growth spurt — I was the smallest kid in the class, looked years younger than I was, just sort of GRADUALLY grew between 14 and 25 years old, had hardly any facial hair, but mercifully, my penis grew steadily, and never really stopped until it was 7 inches long erect. I weighed only about 138 pounds, but had a nice big penis, and really surprised the ladies. After PE, I grew it another inch to 8, and now I am working on girth. Good luck bro.
*I measure PRE-WORKOUT, normal erection* Started: 7 EBP x 4.9 EG. Several years on and off PE, now 8.125 EBP length x 5.5 EG midshaft (5.8 base). Working on girth (clamping) again after breaks due to injuries - fast recent gains! Pics