Funny I just rebuilt the flippers on my Spanish Eyes and both were buzzing like mad no matter what I did. Finally I took a closer look at the new stops that came with the Pinball Resource rebuilt kit and they were the wrong ones! Fortunately a while back I ordered 4 of the correct coil stops (as pictured above by edednedy and still had two of them in my parts drawer. I put the flippers together one last time and made sure everything was good and tight and there is no buzz at all now!