I put 600g in the 23l Double NEIPA I just kegged the other day, 200g in at flameout, 400g total dry hop, 3:2:1 ratio of Galaxy:Citra:Columbus... It is pretty great, ended up kegging 17l of beer after the losses, I have no regrets.
I buy my hops in bulk, so this ended up being ã18 of hops...