Hey everypony, so I am trying to update my stories as fast as I can, but I need an opinion?

In my story, "Mommy Tia" do you think I should have Lauren Faust be Celestia and Luna's mother like I have in "My Little Foals: Freindship is Padded", or should I keep Solaria as their mother?

Let me know what you all think, I'd like to know what you think.