Well, Mr. Bossy continued to "rule the roost" and was causing mayhem in the yard with all the chickens. I can't say he was meaner than any other young cockerel I've seen but the others just weren't the same level of maturity (and size) he was. The RIR cockerel's tail feathers stayed frayed and pulled out. I didn't see the situation getting any better so I put an ad in Craigslist for rehoming.
A wonderful young lady said she had 2 acres and 15 full grown hens that needed a roo so she took him. An established flock with a young cockerel would be a good fit, IMO.
Since Bossy left, my hens are calmer and the RIR cockerel is starting to act more Roo'ish. I think this was the best decision for all parties.
Thanks to those who responded.