My husband is raising Silver gray Dorkings just for that reason. I am not a lot of help. I am just learning about this breed too. But thought you might apreciate the rooster info. Thanks Deeds, I remember that your son got a trio some time back.
Mean roosters seem to be part of the package with chickens in general.
Plus he was gentle. I've often wondered since if that short and well loved rooster was a Dorking. My Grandfather died in 1980, so there's no way to find out. Hope all is well with you. Sort of like people.