If you ever need to make fine adjustments to thrust levers, "walk" them against each other; twist your hand left and right to move each lever at a time by a small amount.
Fascinating. "Walking the throttles" was a DC3 technique used if the the throttle friction nut was poorly maintained making the throttles stiff to operate causing a jerky operation. I have seen pilots who unconsciously walk the thrust levers of a 737. It becomes a gimmicky habit. The result can be a slight but annoying change of noise or engine synchronisation. Old habits die hard. In a similar habit, some Boeing 727/737 pilots always give a quick burst of power a fraction before the flare in anticipation of a runway level windshear. All that does is to extend the landing run and becomes a reflex movement at every landing.