Mex, I did a rough load test at first in August and it came to about 250AH or 83% of 300AH rating for the pair. That confirmed the golf car shop's version from June when they got 86% using their funny timed way of testing where they want better than 100 minutes or whatever they do. The batts then sat outside on a pallet until I came along in August.
I did a proper 10 hour 20hr rate test in October and got 9 hours to get to about 50% (12.1v Trojan spec and 1.175SG) the Trimetric showed that was 270AH or 90% of 300 for the pair.
I did not test them individually. I imagine Batt 4 is better than Batt 1 but I use them in parallel so that was how I tested them.
--BTW, Mex, do you still think with the latest figures that these would be harmful to my 6s to have them in parallel for a few days in a row while camping? I would prefer to have one big bank than the two for that. I separate them when on Float at home.