Chicks are 2 weeks old now. Today we very carefully tried integration. For the most part, Paprika is good, mostly she ignores the chicks or pecks where they are pecking, although she did get one peck in.
Splurt on the other hand is still incredibly strange. She stares at the chicks, follows them very intently and doggedly, and tries to grab and peck at them. She's not super rough (no chicks are injured), but she is very consistent and simply will not stop doing this. She acts almost scared and startled by the chicks at times, and I believe is pecking them curiously. She responds to chick distress noises like a flock member needs help. I honestly have no idea what's going on in her head.
Bean, the chicks mama, only charged at Splurt for one of the several pecks, and mostly just completely ignores the fact that her chicks are being followed and pecked at. Bean is far too docile, despite being a bully while she was broody.
I'll be honest, I don't really know what to do for future strategies here. Bean always wants out with the flock and her babies, but Bean does not protect her chicks from the other hens, she doesn't even seem to notice it's happening. I don't know what age is ideal to integrate, obviously the sooner the better but safety also must be first.