bantam hens in the same flock with LF roosters?

[cupman]

I have a flock of about 40 birds.. 5 roosters. I also have one bantam buff silkie rooster who tries so hard to mate with the LF hens but he can't ever quite get it... and then he makes the hens mad and they chase him around pecking him. It's almost funny but I feel bad for my little silkie rooster. I wanted to get him some hens this February but I am concerned that my LF roosters could maybe try and mate with the bantam hens and injure them. Is this a risk even if the LF roosters have LF hens?

Thanks!