I've never busted a gottlieb drop target until I DC rectified the flippers on my Fast Draw - that snapped 2 of the original targets almost immediately. Pull the rectifier out as that game doesn't need it.

Gottlieb drops are the most reliable drops out of any manufacturer. The only flaw they might have is if the foot on the bottom breaks they can reset too high, but if you replace them all with new, that probably won't happen in home use (the foot gets busted when people maladjust the reset stroke).

Also, if you change drops to standups, the reset circuit won't work, and the gameplay will be completely different as you could reactive the spot-as-drop target. I'm all for laziness and easy of maintenance but replacing drops with standups is not the formula for that.