Hi I am new to the Dorking breed.. I currently have 7 McMurray Silver Dorking hens and 3 cocks that will be a year old this month. I need to remove 2 of the cocks from the flock.. I have one that is mean but is the prettiest with wonderful markings..the other two have better temperaments..but feathers and markings not as pronounced. if I keep the aggressive one.. will his mean streak be passed on to future flocks? Should I just remove him?