Reconditioning batteries; Do these numbers look right?

Hi all, I've recently picked up a 1st Gen prius that had been left in a paddock for what I'm told was about 10 years. I pulled the battery and the entire thing was cactus. All batteries had shorted and all of them had been leaking from the positive terminal. Before getting a new battery I decided to have a go at reconditioning one. So I bought a battery for a 2013 Camry from FB marketplace (only 34 cells instead of 38, I found a guy selling individual cells to complete the pack) and a Tenergy T180 charger. After a few weeks I have cycled every cell and the results have been pretty dissapointing. Very little improvement with some cells seeming to get worse with successive cycles. Tenergy T180 Settings:
Capacity 6500 mAh
Charge 5A
Discharge 5A
End Volt 6.3V
CHG>DCHG
Cycle 3T
Delay Timer 5 min

	Column 1
0	Module No: Module Start Voltage First Discharge Second Discharge Third Discharge
1	1 7.886 4923 5168 5485
2	2 7.81 2453 2500 2447
3	3 7.842 3236 3138 3108
4	4 7.832 3485 3408 3625
5	5 7.82 3288 3087 3354
6	6 7.826 3147 2976 3000
7	7 7.814 3244 3298 3245
8	8 7.812 3100 3216 3309
9	9 7.812 3180 2850 2820
10	10 7.816 8584 3239
11	11 7.792 3498 3420 3706
12	12 7.78 3570 3685 3803
13	13 7.792 3593 3566 3783
14	14 7.786 3279 3364 3753
15	15 7.792 3486 3448 3729
16	16 7.792 3744 3627 3884
17	17 7.84 3468 3742 3475
18	18 2838 2691 3022
19	19 7.834 3725 3495 3618
20	20 7.822 3629 3281 3323
21	21 7.824 3752 3616 3521
22	22 7.822 3535 3568 3335
23	23 7.72 1796 1732 1679
24	24 7.766 1951 2023 1956
25	25 7.772 2059 2059 2015
26	26 7.742 2448 2276 2437
27	27 7.744 1861 1939 1933
28	28 7.768 3201 3575 3812
29	29 7.756 2308 2309 2294
30	30 7.758 1701 1621 1598
31	31 7.71 785 784 793
32	32 7.806 2866 3007 3091
33	33 7.842 5588 6273 6533
34	34 7.844 5384 6405 6554

Sorry about the table format, I could not get columns to work.

As Battery 31 was the worst. As an experiment I tried drilling into and rehydrating with 60ml of boiled distilled water syringed into it. I then Charged at 6,5A and discharged down to 3V at 600mA (~0.1C) before cycling it again like all the others, Charging at 1C and then discharging to 6V at 1C. The final result was 928mAh which I realise as I'm writing this isn't too bad (17% increase in capacity) but is still unusable. I also tried discharging Battery 30 to 3V and then cycling it like I had with all the others with results showing more or less the same. All the videos and tutorials I have watched online seem to show remarkable recoveries and increases in capacity. Has anyone else had the same or similar experience? Is there anything else I can try on the 'better' modules to improve their capacity (maybe a few cycles of slow discharge to 3V @ 0.1C)

A couple of extra notes:
These have been charged Night and day 1 at a time and temperatures ahve been between about 4Deg C and 18Deg C.
dV/dt I believe is set to 5mv. This can be changed on an individual charge. But I cant 'determine if changing it in that menu also changes it for the cycle setting menu.