Bad sign. Abandon noose-style extenders if you get those signs, or at least go with lower tension.
It’s not a noose, thats the “comfort strap”. Although it did ship with a noose option. You think it’s a bad sign getting a wee bit darker just while strapped into the extender? It doesn’t stay that way after I take it off, it goes right back to normal pretty quick.like within minutes. I don’t see how anyone could avoid such a thing, given the tension needed, and the time it takes to do anything.
My problem is at the base.where I’m about 5.5 inches, maybe a bit more, and the dang thing just kinda cuts into the skin, makes a bit more of a mark that takes a bit longer to go away (it’s not unlike the mark that elastic banded socks give you on your calves). They (x4 labs), sell a “girth edition” but supposedly it’s only bigger in one dimension, not circularly. I don’t know if that would help the situation or not, but I might order the “girth” base piece.