Wonderful write-up! Very interesting findings with the gold rams from black parents and variations, as well as how they pair.
Interestingly, in my 48 gallon tank, I had a BMxRF (Regular) and RMxBF pair up much to my dismay and yield me two batches of fry. They haven't colored up yet, but wondering if they'll end up being just regular rams since the black is recessive?
I'd also recommend Lowell's Fish Lab on youtube, he's an excellent resource for breeding.