I see. In my experience roosters easily accept new hens, so you shouldn’t have a problem whichever rooster you keep. I am amazed that your flock of 4 roos and 2 hens has kept the peace so far…
They may or may not have stopped because of you - hard to tell without seeing it, but that doesn’t...
Sorry, it’s late and I think I misunderstood. Can you tell us more about the number of HENS in each flock? I got the impression that your original flock was a bachelor flock, but maybe not? If you do have a *ton* of hens and a ton of space and separate coops or a truly huge coop, I could see...
Combining your two groups is a bad idea. It’s not always possible to have two roosters in a flock, let alone more than that. Your all rooster flock can get along because there are no hens. Add hens to the mix and the fighting starts. Even if by some miracle your roosters were to all get along...