#1, you should post this under the Feeding thread...you will get more answers...
#2, I would go ahead and start with layer feed, just mix what starter you have left.
I have a mixed flock, 22 week old laying hens and roos, plus 3 12 week olds, I am still on layer feed till the
little ones reach POL, I offer oyster shell on the side and the hens who need it, eat it, my egg shells are nice
and hard. When the 12 week olds reach POL I will switch over to layer feed.
Just the way I do it, other people have different ways, but I would if I were you, they are far enough along...
EGGS! Yeah, any time now, at least a week I would say!