either this or he just doesn't give a shit anymore, but I'd say its more likely that he doesn't share what he's doing because people leak everything about aqn
settings are usually saved automatically iirc, changing unstable rate will effect your UR which you can see at the bar in the bottom (I recommend to find a setting that looks simialar to legitimate players at you rank)
azr8 could be cheating, he's insanely consistent so the best bet would be he's a not too shit player that uses rpr (which is the thing most people do without getting banned unless they do stupid shit like copying someones replay)
a function that lets you decide to have atleast x 100's (not including 100's from missaim etc.)
would be good so you don't just consistently SS everything even tho u want to keep UR low