Quoted from gk_usa:With factory settings I have balls flying from the left ramp to the right ramp.
Yup, the ball screams around the left ramp on my premium also, which helps get the ball up the diverter for the TK lock.
When lock is not lit the ball is sometimes going so fast that that it passes above the opto on its way back to the inlane. It's always fastest right after cleaning/waxing the ramp with novus1. I get an occasional air ball like yours right after cleaning.
That is with the flipper power turned from default 255, down to 230. I could probably lower it a bit more. I also have to pay attention to the Demogorgon shot accuracy when changing that.
You can try lowering your flipper power which has lots of benefits. (less airballs, less wear and tear on everything, less bricked drop targets, etc.)
Feature Adjustment #88 is left flipper power and #89 is right flipper power.
While your there set the trough eject to the minimum to reduce wear on the shooter lane. (Feature Adjustment #85 - trough eject power)