Recipe was:
(in EACH mash tun)
6# Maris, 0.5# each: choc, c60, roast barley, flaked oats, flaked barley, 0.25# choc rye.
5.3 gal strike water in each.
Beersmith says 1.2 gal absorption (each MT).
So, theoretically, I should've had 8.2 gal total in the boil kettle.
pre-boil vol was just...