Yes, it looks like Nadia likes to throw sports, they even may be different. Maybe I can get Vincent to send me some scion to make a better comparison. It does look like the nursery Vincent got the plant from propagated a sport, sort of. It's unusual for multiple sports, but the tree itself is wierd anyway. I took some more photos.
A third fruit, short stem.
Another photo of the one long stem. Not that long, but less diameter, and certainly longer, and the color is different too.
I actually think this is a third variation. The tree is mixed up, throwing all kinds of sports. The stem is not as long as on Vincent's tree. Yet longer than the other fruit on my tree?? Also the only example of one with no wax bloom (like cherries, also the dots are common on cherries)).