No issues with repro targets.

Two issues are possible.

1. If drops stick when actuated lightly while mech is pulled away from the game it needs a level of disassembly and cleaning. The unit needs no lubrication once fully cleaned and set back up properly. Set back up properly means all the proper parts in place and scoring switches adjusted if needed(which is uncommon). If drops actuate fully with little contact move to item 2.

2. The position of the drop target bank on the playfield can cause the targets to drag on their way down from contact with the rubber rings behind them. Look for this and, if binding, shift the mount of the bank slightly to create the clearance.