I've never got that 'frame of eggs' argument.
How often does that need crop up?
Very rarely I suppose, and even then it requires the donor to be conveniently local to you. I think it may just be another apocryphal fable written in the BBKA book of myth and magic.
but even if you 'desperately need' some eggs, simple - cookie cutter will give you sufficent eggs in a small area which you can graft into your frame.
The only real compatibility issue I would see is if you were going to buy a colony from someone on a different format.
