I split (most of) my hives 2 weeks ago, twice (I got two new colonies from one). Average was 6 frames of brood, so I would leave 2, and take 4 to make 2 more colonies.
I just checked the splits today and all seems to be going well, the queens are laying well, they're making honey, etc.
I would like to do the same type of split in July (two from one) but I've been told that July is too late for them to build up and they wouldn't make it through the winter.
There isn't much around here for them to collect, so I'd be feeding them syrup and pollen substitutes.
You think they'd make it?