I'm trying to get hold of the things, not much joy yet. Very handy with tube flies, particularly with the Cam Sigler system.
In fact you can use Gamakatsu short shank circles with tubes.
I need them for the long rod system, I'm still praying on bended knees, mabe I invoked a curse from upstairs with my references to "unholy" spools. Do you think Him/Her up thar read Ausfish chats. Have a nyce day Steve catchee plenty. Max