Quoted from pinballkyle:
When hitting the drop targets on mine at least 50% of the time the ball will just bounce off the target and it will stay up. Sometimes this happens 4/5 times in a row. Would love to hear any idears on how to fix this.
I assume the drop targets are the same as past drop targets in other games. The one in my ST did the same thing - hard hits rarely registered. Found out it was a common Stern issue and came across this MET thread with the same issue. Only a spring adjustment and super easy to do. Best part is that it costs nothing. My target has since been working almost perfect for many, many plays.