I have far too many yellows for some reason. I'm not even very fond of that color.
Several of the newer-to-me yellows (Carolicolossal, Condilla, Goldie Fritz, Precious de Oro, Solar Attack, Yellow Light [Smokey's garden name] and even H. citrina) are complete selfs. I'm really a dunce. Still, the more you know...
I do have one yellow self, Isaac, which is think is disqualified by a very green throat.