Left flipper is a little wonky

The flipper is definitely strong enough. It can easily make the right ramp or Striker's Hideout from a cradle. However, with the glass off, the left flipper made more of a metallic clunking noise than the right flipper. I suspected that maybe the coil stop was the issue, and I found that it wasn't screwed in as tightly as the one on the right flipper. The stop itself looked fine, so putting it back in and making sure it was screwed down tightly seems to have addressed that clunking noise. I think it's fine now.