Okay, I finally got three 1mm shims over the bottom static
(non-moveable) open v-shaped, slotted piece that the brake shoes fit
into.  However, I'm not sure how 3mm will make a difference there.
The shims don't even come up to the notch.  I envision installing
shims to make the notch slightly less deep, so that the brakes will
make better contact on the bottoms.  But I'm not sure what's going on
here.  Anyone have any pics?

Thanks,

Warren in Santa Fe