My batteries disconnected from the coach and allowed to sit will self-discharge 1% per week. Their SOC did not drop 5% while performing the testing. SG is still 1.285 in all cells. The only thing that dropped was surface charge. 100% full voltage is 12.73 with no surface charge left after a complete 24 hr self-discharge with my batts. I don't pay much attention to voltage because it's misleading. I only use SG measurements to make determinations. And SG did not drop below the 1.285 mark.
When I first connected my bank to the IOTA, it did the same quick 55 to 53 amps as it did this time but held 53 for considerably longer. The bank was at ~85% SOC at that time. This time it held 53 for a bit then tapered pretty drastically but the bank was for the most part at 100% so that was to be expected. I will say that my old Paramode would do 58 amps in a similar situation and taper quickly from there.
BTW, they are at full amp hour capacity now. I made a thread about it last year sometime.