Here’s a pic of a branch on the South side of my So.
Here’s one on the NW side. It is also shaded a bit in the afternoon by the roof, so it gets less sun than the branch in the first pic.
I know I mentioned the same thing very early in the thread, but figured that these pics are pretty clear. Also, Raf asked for pictures of productive jujubes. 
There are some other branches with intermediate light which have intermediate amounts of fruit. One close to the ground on the north side has none at all.
I also noticed a few jujubes with dark spots. Hopefully they don’t signal local insects adapting to them, as they look a bit like PC feeding marks (not from laying eggs).
