Re: Has any one else run across this one?
Obviously you haven't had the opportunity to install one of my sprocket adapters.
I realize there are other clamshell type adapters available. I haven't tried one, so as far as I know you may be right regarding those products.
My adapter was designed for a bike that I was building for myself, that had a coaster brake hub. It was designed to drive the hub, not the spokes. It is not a hassle to install.
The idea that the rag joint absorbs shock and therefore saves the spokes is nice in theory, but doesn't hold water.
Leaving the theories aside, I don't think that anyone can argue whether or not it is a good idea to drive the entire hub.