So, this brings me to several questions:
1.) Does anyone know a source for 7/16 bearings? 2.) Is there a reaon not to use a bearing on a bushing designed guide? The manual warns against it like it would cause the end of life as we know it if you do. I accept the fact that it might wear the fingers slightly more and would be willing to accept that. 3.) If I can't get a bearing and am stuck with a bushing, does anyone have suggestions on routers/bearings that would be most friendly? I see Leigh has a bearing that allows you to micro-adjust the size of the bearing. Seems there should be a router or bushing that somehow allows you to click in a perfectly centered bit. I use a a centering bit on the bushing but it doesn't take too much use before it is slightly off center. Tightening it usually only worsens the problem. I've tried it on 3 different routers with two different bushing sets. They have all been Porter Cable type bushings.
Thanks for any suggestions.