Mike sounded good overall on the first RTJ imo, but he wasn't fully adjusted to production. R.A.P. Music sounds like a southern Bombsquad project to me, and Mike was comfortable on it. Imagine Killer Mike on every C4C track...he'd be dope but sound out of place. Likewise El-P sounded uncomfortable on the up tempo, more aggressive tracks on RTJ1.
Whereas on this track they've turned it up to 11 on aggression, and El-P switched up his flow keep up. I'm impressed.