I beg to differ. Separating the sticks on turn-arounds does far less damage to turf. Yes it takes some practice. Dragging and scrubbing the inside tire on turns tears turf.This is exactly how I teach customers to drive their ZTR's.
Use your writing hand to steer and your other hand to balance the speed.
Forger about one stick forward & the other back, all that will do is dig a hole in your lawn.
Concentrate on the steering hand and just let the other follow to maintain or reduce your speed.
After a few mows you will develop the required muscle memory and will be driving without thought.