I'm going to suspect that we are discussing a
cockerel here. If a mature ROOSTER is causing that much damage to 15 ladies.. he need to be moved on..

Do you mind sharing his (their) age and is he Wyandotte also?
Otherwise you might consider kenneling him for a time out ( next to and in sight of) while the ladies recover a bit and he gains some maturity and hormones level out some.
Most broken feathers will NOT be replaced until molt. So you may not see immediate improvement with your saddles.. but they should protect the skin under neath. Saddles are a good option when needed but not truly a desirable (long term) choice.. for the hen.
Are you planning to hatch some chicks, just like roosters.. or have any specific reason for keeping him? Just curious, knowing YOUR reason helps me make more appropriate recommendations..