What would cause a weak flip after trapping a ball? The game in question is a Gottlieb Ship Ahoy. Both flippers were rebuilt and it only happens on the left flipper. The right flipper has full strength after holding it up for a time.

I'll take a look at the EOS. Thanks for the suggestions. I cant remember if I replaced the coils on this game or not. I'll be able to tell though and will report back.

Finally got around to checking the EOS switches and it seemed like it did the trick. I made sure the switches made good contact and tightened up the gap a little bit.