The two ascenders and two etriers. Daisy chains going to both ascenders clipped short. All you need is lots of practice shifting your weight to get efficient at it.
The easy aider is a pain in the ass to use. But some people swear by them.
And the last question. Watch two a day with Tommy Caldwell. You'll see Rodden jugging up just like the normal people do. If it ain't broke don't fix it, eh?