I'm new as well and what's helping me get more consistent results is having a stopwatch with a repeat timer. My Timex Ironman does this; I set a 30s timer and just let it count down repeatedly. When it starts beeping I start doing whatever I'm doing and stop at the next beep. I stop the spinner, move the ball to the next side, re-wet my sanding pad, apply more polish to my rag, whatever. That takes about 30s to get ready for the next round and when it beeps, I start again.
Having a hard timer really helps you do the same thing to every side of the ball. You don't have to worry about one side being more polished or getting the ball out of round.
SH