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

	Module No	Module Start Voltage	First Discharge	Second Discharge	Third Discharge
1	1	7.886	4923	5168	5485
2	2	7.810	2453	2500	2447
3	3	7.842	3236	3138	3108
4	4	7.832	3485	3408	3625
5	5	7.820	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	7.780	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	7.840	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	7.720	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	7.710	785	784	793
32	32	7.806	2866	3007	3091
33	33	7.842	5588	6273	6533
34	34	7.844	5384	6405	6554

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.