With regards to this specific question I've found Coinomi and Ballet to both be magical when sweeping the forks and in that order. Sometimes one will support a Bitcoin Diamond then the next time it won't so not sure why and when they decide to support or drop support for a coin but usually it's the very random not worth very much coin or project and I'm assuming it likely causes more of a headache and/or security risk for them to continue to support them. I'd say you grabbing what you grabbed off Coinomi is plenty fine enough in my opinion as you're grabbing 99% or so of the value! Thanks again for your post. It's very nicely detailed!
iBHK8