Ah. You know, I looked up every butter/lesser fire combo I could think of, and compared them (the ones I could find pics of) to the same combo minus the fire, but I didn't think to look at fire clowns. They are surprisingly dark on the dorsal. Seeing that, it makes me lean much more towards that being a nuke clown.
I'd take the opinions of those well known breeders over mine anyway. :P