Hi Tami,
I have read that thread many times and posted in it last year as well. Here is what I think, your tree(s) you posted pics of look the same as Micheals at the start of the post, which Herman stated were the original PN, with mostly 3 lobe leaves that resemble Ischia Black. The fingers or lobes of the leaves are a little wider with the palm portion being a bit larger as well(in comparison to Petit Aubique). Your leaves don't look shiny,yet that can be affected to some degree by the amount and or intensity of direct sun and age of a tree. Also, the trees in your pics are young, so leaf morphology may change over time.
My tree looks like what Herman has pictures of and says it's Petite Aubique. However, my tree has never made a branch with single lobe leaves on it. That may change in the future, but as of now it is what it is. It's a great tree, worthy of a place in my yard, but IMO it needs to be called Peite Negra-RT..just to keep things straight.