Quote Originally Posted by Morgana1999 View Post
It is the Nymph fluke! I counter remember what it was called at first. It is right underneath the fins. For some reason it won’t let me put up photos of it, but I’ll figure that out.
Okay I think I know where you're talking about. And I think the site got rid of photos to save storage space. If you can attach a link, that could work.

It sounds like either the vinyl, the monofin, or both are causing friction and that's what caused the holes. It's a point where all three meet so its a potential hotspot for holes. What monofin do you use?