I'm using a JR 9303 xmitr and I'm using all nine channels.
Could use one more if had it available.
I think the specktrum only has eight channels, if they had a nine chan rec it would be a good system for me.
I am flying a Ziroli Panther that flies very nice, but bounces on landing if too fast, so the speed indicator would be nice.
Of course too slow and that's trouble too, although the stall is gentle, I've banged up the LG a few times.

So, I'm looking at the available options.