<Sorry I can't do any better.>
Thanks for the lead. I have been using the plastic turn-lock base that
sells on my Porter-Cable. It looked kind of junky but it works just
got a self-centering gizmo for the bushings that really works. It's
just that you
get one router set up for one phase of whatever you're doing and you
to change it, so it'd be good to have the capability in another one.