Hi Ken,
We have only ever run the silver class. No one really has any bushed engines. I got out all my stuff and I actually have 6 Pro 40 engines so I quess I'm good for a while. I ordered some bearings and replaced them in a couple. but the others were good after just a good cleaning and some oil. It looks like the .46 engines are getting scarce too. It's sad to see all the companies that have gone out of business in the time I was gone. I'm going to keep plugging away at it. Hopefully we can keep it going.
Blessings, Terry