No they weren't, in Marine Ford WB commanders were shown stalling an Admiral...with Marco and Jozu...if What GB did here was done by each of the Admiral in MF....things would have been far more easier for Navy in the war.
Chopper : if you take this drug , after effect , you feel double pain.
Grim repear is just a depiction of pain effect. That is all. Is over. Also , he said he beat grim repear for sanji . you can understand like that as well.d