In his book "The Complete Joy of Homebrewing", Charlie Papazian tells us to add gelatin to the beer just before bottling, at the same time we add priming sugar. (to clarify the beer)
I haven't heard anyone else add gelatin this way. It seems that the consensus is to add gelatin at an earlier stage, particularly right after a cold crash.
Is there any disadvantage to adding gelatin at this late stage?