Originally Posted by gloopy

Yeah and you got +/- miles on each side of the airway before anyone cared, and +/- a full 300 ft as well. If you messed up then, it was far less likely to have lead to a loss of separation. Now they expect zero variance. A couple tenths of a mile is a big deal, and snitch boxes are way more prevalent than you think. Its great to practice hand flying and I agree that collectively we don't do it enough, but sometimes you have to swallow your pride and monitor the AP.