Brakes
It's just lazy and unnecessary to use them.
oh and that goes for changing down unnecessarily to increase engine breaking - that's just cheating.
Forward observation & planning is much improved, & I am really enjoying having another focus to my riding rather than just getting everywhere AFAP.
Plus I can still enjoy accelerating to get past a hazard instead of braking before the hazard.
Once I've mastered it I will move on to actually braking to maintain momentum (slow down earlier for traffic lights so that you are still moving as they change to green).