Mike Salvini (aka Double Long Daddy) has a 5" stretch mark from it as well.
Size matters - Page 4 - Salon.com
"As the blood drains back to the rest of his body, Mike twists his penis over and points to the stretch mark. And, sure enough, it is there, and it is nearly 5 inches long, pink and angry, a symbol of everything a man can aspire to. "
I have seen some of his matters of size videos and i havent seen a video that shows a 10.5" dick in it. If DLD is doing the matters of size videos then he is NOT even close to 9-10-11 inches!
Here is a video of Mike Salvini aka Double Long Daddy from "Perfect Penis" documentary.
It shows him nude and pulling his dick ...... he only looks like he can pull his dick to about 7.5 inches or so.
http://www.megaupload.com/?d=Q6LXXG9Y