Well that's a niche request, didn't really expect such niche questions to come up on Lemmy. But what's even more surprising is I can answer.
I set my phone up on D. But I have only connected it to one device currently.
I've only had the controller less than a week but it's legitimately amazing. I was expecting some version of a crappy player two console you bought in a store that's doesn't really work or feel right. But also being make of the crappest lightest Chinese shit possible.
The controller feels perfect honestly. Edit: maybe a little on the small side but that's it.