The Quick Descent dubbing is nothing more than finely shredded anodized aluminum. I once weighed a large wad of it and a wad of synthetic dubbing on equal size ( as close as I could eyeball) and the weight difference was insignificant - even more so when you reduce to the amount that you would use on a fly. Calling it quick descent and implying that your fly is going to sink faster because of it is mostly hot air and hype.

On the other hand it is easy to dub with because you can literally bend it around the thread where it stays in place. On the minus side it is not as soft and light does not past through it, so it does not have the translucence of most synthetic dubbings.

Jim Cramer