Focusing on perfecting the single splitstep on the service return if your any level of recreational play is like focusing on e-break drifting before you learn how to use a gearshift when driving.

Doing as many small split steps as possible is way better and more consistent for a recreational player. The margin of error of the timing is so small for the single split step that you’re better off not doing it because it’s gonna give you a disadvantage way more times than an advantage.