Once all drops are lit hit the bullseye standup (ctr) to reset and keep racking points. Nudging up top will usually get bottom half drops.
Hitting the drop target with the light on behind it scores the bonus value (up to 5000) rather than the normal 500. Do that.
Safest plunge is to the 2 or 3 lane, 1 and 4 stand a higher likelihood of going STDM
To advance the bonus value either complete 1,2,3,4 OR complete all 10 drops and hit the super drainy center target.