Looks real good GCP!
Did the amount of foam in the pic expand to fill that whole compartment?
in a couple more minutes yes it was filling all
each cavity was measured to find the cubic volume of the cavity
2 gallons or 256 ounces of combined part A and part B expands to 8 cubic feet 8/256 = .03 cubic feet per ounce
if a cavity was 1.3 cubic feet 1.3/0.03= 43.3 ounces of foam I rounded that up to 44 since I had a little space for it to go too beyond what I measured and pour 22 oz of part A in both containers.
then I pour to 44 in the first container with part B and my son would grab that and start mixing as he walked to the far side of the boat as he was doing that I was pouring part B in the second mixing tub and mixing and walking to the near side of the boat.
about 45 seconds of mixing and it expanded right out of the cup and start pouring
on the second pour we made a tape wall to keep the foam from running to the middle as much
my cup was about 20 seconds behind his in expanding because that was about how long it took to pour then start mixing