Some of those are pretty drastic for that young...I'd guess there's some pecking going on as well as just treading damage.
Cockerel ratio seems fine number wise, but individual personality can play a factor too, plus they're young so competition is a huge factor.
How big is your coop (feet by feet)?
What and how exactly are you feeding?
Added animal protein can help, especially indicated if they are eating the picked feathers.
Depending on your needs for roosters, it might be best to remove 2 of them.
I found that removing the competition immediately calmed things down.
I agree with this but the level of pecking is so significant on some of these hens. I've never seen any rooster or roosters that would breed that hard and heavy. This looks like the whole flock is pecking to me
I'm waiting to hear back from someone who wants the roosters. Should I remove the hens that are badly plucked until they can recover a bit? We feed them a mixed feed that we get from a granary near by. It is crushed. They also get fruit/veggies, meal worms, and crack. I want to deal with this the best way possible while trying to get these roosters out. I"m tempted to let them roam in my back field but I'm afraid they will crow all night long.