~Masamune~
When you get cubs from a Breeding, are you allowed to request that they grow on to the alt adult lines? Or is it up to the colourist whether or not they wish to do that?
Many of the colourists have threads for conversions to alt stages. There's usually an option to post cubs that haven't grown to adult yet and have them grow up on alt lines. I'd check for such a thread for the colourist in question to see what they say about it.