Quoted from Fezmid:
Well this is a first for me. The ball was going really fast, I flipped to hit the right ramp, as it was going so fast that when it made the slight left to be dropped at the inlane, it instead flew out of the wireframe, over the flippers and drained. And as appropriate, the callout was "oh, cheap drain."
Mine used to do this. Put a piece of self adhesive felt on the back corner on top of the ramp to slow it down a little which cured it most of the time. Ended up bending the top outer wire form in so the ball wouldn't ride up high enough and never had a problem since.