Rooster crowing dynamics

I have 2 young cockerels; a polish (Chip) and a pekin bantam (Mochi).

Chip likes to practise his crow all day everyday. He is definitely the dominant rooster. He likes chasing the ladies and tidbitting and all that.

Mochi was a little socially stunted due to sustaining an injury at only 3 weeks old. We kept him inside away from everyone so he could heal. He's very friendly and cuddly. We got him back with everyone else at around 5 weeks old. So Chip and Mochi have grown up mostly together, apart from the 2 healing weeks.

I dont hear Mochi crow except for around 10 minutes at 7:30 am, and he ONLY crows if Chip is crowing. They don't fight ever, and i worry that Chip might attack Mochi if he crows but that hasnt happened. And I havent seen Mochi try mounting at all.

If Mochi and Chip were to be separated, would this encourage Mochi to start crowing other times? I like that Mochi is quiet, but I'm going to want to seperate them into breeding flocks soon.