Keep an eye on your lit numbers. When all four numbers are lit in the same color the corresponding saucer awards an extra ball
The saucers eject the ball from left to right I to the next pit. Therefore it is to your advantage to try to light the lights farthest to the right first. You will always get the green pit points if you land in any pit.
With such a short distance between flippers and a fat center post it's often best to not flip when ball is heading down the middle.