[RichardJ]

>>based on minimal shoe wear<<

Shoe wear on the rear brakes isn't much of a indicator. Front brakes on front engine, rear drive do 60-70% of the braking. Front brakes on front wheel drive vehicles do 80-90% of the braking. You can replace front brakes on FWD 4-5 times before rear brake shoes need attention.

>>how slowly fluid flows out of the bleeder valves<<

I didn't notice what bleeding method. If vacuum, make sure you are not sucking air past the threads on the bleeder valves.