These two pedigrees take us back beyond 197 days. All the Burmilla-Lilacs in the pedigrees take us back eventually to Eadie Superstar.
And I agree it's much easier just to pull a hider, however every time I've tried that for proofs purposes it has proved a sure fire way to get the cat to pass it's visible fur. Which I suppose is no bad thing, just not what I was trying for.