I just recently did a lot of farming there on another character.
My first character is on NG++ and my second character is just on NG.
Both characters had an Item Discovery of 350. (Ring + 1 humanity in stock).
The difference in droprate is very noticable.
My NG++ character gets around 2-4 chunks per run. This is very consistent. I never went a run without seeing one.
My NG character gets on average 1 per run. I still haven't seen a run where I got 2, which is the minimum I get on my other characters. I have also gone several runs with getting zero chunks, which has never ever happened on my NG++ character.
I know everyone is probably going to say that it's not a big enough sample and that I'm not seeing a pattern, but I'm going to start tracking on paper chunks/dark hands/slabs per run on each character and let you guys know the results. So we can have some exact numbers to compare it to.