I didn't note my discharge rate for capacity tests (it's 750, goldilocks zone apparently), because that's not the interesting result i was sharing, ie, irrelevant to the high success rate for these low voltage recovery. But you make a good point that I'll clarify: after the 25ma charge rate for 5-8 days, and the 30 day rest to weed out self dischargers, I used the same discharge rate for capacity tests that I use for all cells (750ma). Which is to say, the result of this low volt batch of cells being a better yield and better capacity than other categories is not a result of different method of capacity testing. If that makes sense?First, really enjoy reading about your test results!
But I had a thought - e.g. I didn't read your discharge rate (forgive me if I missed it). To reiterate consistent advice from @daromer (one of key members of this forum) it's good to discharge test your cells at >= ma that you plan for the overall battery / use you're planning. This will reduce surprises in use behavior under load. 250ma / cell might be a bit light - but maybe that's your battery design.
A lot folks do 1000ma for discharge/capacity tests because it's standard OPUS and faster. I do 500ma because my OPUSs overheat and my battery use averages <200ma/cell.