Unfortunately, I lost a vid of 200 kg squatting, so no further prooflink, i am sorry.
These numbers are quite humble, it's only 560 kg total. My weight was 115 back then, so it is no achievement, really. I was going for 600 kg, but my spinal hernias had their own opinion.
I tried thin gloves - it helps, ffs, it really helps Still waiting for that new chair.