Ohhhh yeah...

... the ball bearings came in. They worked great. Unfortunately, the tires that the blade rests on have "flat spots" on them. So when the blade is feeding through the guides it moves left to right about 1/4". That ain't good. So, the band-saw remains in pieces until I can get replacement tires.

I flattened a board today. 4 sides, by hand. Maybe 1/64" out of flat. That's pretty good. The edges were square to the faces as well. I was pretty proud.