hi jonathan
i worked for a portrait photographer for a while in the 1980s and making huge runs
of prints was something i did often ( think 500 copies of a 5x7 print for newspapers &c ) ...
you get your times, burning/dodging worked out on your print.
run it through the chemistry and get a blow dryer and dry it out
to make sure with dry-down you will have the right time.
then expose your paper, just like the test print. you might want to do maybe 16 or less at a time because
if you do all your exposures at once and you have a problem you don't know about, you will have to do them
all over again ... i used to do 16 at once but it takes practice, so maybe a few, then a few more and then 16
you need a set of large chemistry trays ...
and you will have to put your hands in the soup, so get latex or nitril or whatever gloves you want ..
put the prints back to back, and put them inbetween your fingers ... a pair between index and thumb
index and middle, middle and ring, ring and pinky, both hands ...
then all in the soup ... alternate releasing pinkies on both hands first, then thmb/index then ring,
middle and last middle index both hands at the same time ..
and shuffle the pairs flipping them over in pairs, as many times as you did the test print ( i usually did 6 )
and make sure you agitate your developer .. when done
be careful shuffling around if you are making rc prints, a corner can scratch/rip the emulsion of another print
pretty easily ... fb is soggier so you won't really have much trouble ...
take them out of the developer all at once in a stack, and into your stop or water, then fix ..
they
should all be the same. put the test print in a water bath and look at your prints and compare to
the test print and make adjustments ...
keep your test print separate from the rest and if you can't do all your exposing + developing and finish in one run,
make a test print the next time you print, and compare it wet to the test print you made the last time ...
if you have to use more than one box of paper, remember it might be different from the original paper
so you have to do a test print to make sure of your time &c all over again and tweak it if necessary ..
good luck --- have fun
john