I was waiting for Robert Smith to post any updates on this variety, but as of now, he's in Vieques, which just got ravaged by Hurricane Maria, so he doesn't have cell phone service, running water, or electricity. Despite lack of infrastructure, I'm praying he's eating well and feeling fine (I'm quite certain he was safe for the storm, but he's probably miserable by now, due to all the chaos).
Bob and I were racing to fruit this variety (which was collected via scionwood about 3y ago), his tree had a fruit set at the same time as mine (I assume he harvested his right before me, but couldn't post an update because of Maria). I would have waited until he was able to post again, but only if the news was good. I had 3 fruits set on my tree, and the smallest one split open the other day. It turned out to be just a normal red sugar apple, not much different than big red in terms of texture, internal color, and eating quality.
Here is a photo of the biggest, nicest fruit I was able to produce, it still has yet to ripen, but I'm assuming the internal color is just a standard white color.
When all is said and done, it was a fun ride. I think the moral of the story is, never lose hope, keep searching for that special plant...maybe not a pink fleshed squamosa, but something special and undiscovered, is out there waiting....