First mistake...figured I'd get it out of the way.

One of the rudder hinge bearings was binding slightly in the bracket I fabricated yesterday, owing, I suppose, to a speck of paint in the machined recess into which the bearing race fits.  I saw this on another build blog I'm following, as well.  So....I now know how to drill out solid rivets.  I was a bit unhappy with both brackets because of a larger-than-I'd-like gap at the top.  I believe this results from squeezing the bottom-most three rivets first, so I'll squeeze the ones closest to the bearing first this go round.