I think I have to disagree. I also think alot of people on here are underestimating the usefulness of the cock ring as a p.e. Tool. I never clamped before but I feel like using a cock ring is a close second. If you haven’t tried it, you should. Then please post and tell us about the pump you get. I can literally see the expansion and feel the head fill up. Theres no way this is not helping. Maybe not with length but definitely with girth. Last time I measured girth about a month ago I was at 5” measured today 5”1/4. I’m very happy with this. I would like to hear from some peoples opinion on this after trying it out for a few weeks.