Even though I have a Garretson proportioning valve that keeps the
pedal feel pretty good, there's always a bunch of free play before
the brakes start really working.
Anyway, I had an excuse to get into the rear wheels, and I adjusted
all the adjusters like 1/32 of a turn back from where they grab the
wheels. The pedal free play was much much less and all was right
with the world. Of course about 3 days later we did the autocross,
and by the time I was driving home the excessive free play was back.
.
If this wasn't a street car in a stickler inspection state, and a sort-of
'classic' car that I want to keep close to normal, I'd go to a real rear
caliper design.