I'm in NYC too, & the boxes I've gotten have been dismal. I've been just hitting teller trays when I find the time & pick up a box or two here & there.
I've had some pretty lousy boxes myself lately but not nearly that bad. In my last 9 boxes in the past week I've found the exact same amount of silver - 4 40% & 1 90% BF (as well as 3 clad commems). 5 keepers out of 9,000 is bad enough but 5 keepers out of 52,000 would be hard for me to take (or rationalize).
I have tried to reach out to CnC to see if he is still doing well out there, NO luck on contacting him...
I do not think they managed to drain it. I do think it is more likely that CnC and DB have talked and dump on the same banks... I am not saying 2 men can mess up a supply, but I would hate to be the one to find out.
With that kind of volume he is probably reaching the bottom of the barrell, at least for a while. It may be worth while to go to another denomination of coin and in about 6 months or so see if things have turned around.
I think after this next order I'll be back to hitting the dirt with my detector...my last two boxes local produced zero keepers. not even a 40% in the mix. depressing... maybe the bigger fish have finally cleaned the pond out...