Keep the trail-hand grip connection through impact
One host stresses that the trail-palm-to-lead-thumb connection is not just a setup checkpoint: it has to be maintained into impact in the same position it was at address. If you come into the ball and flick down with the fingers, you lose it and get a bad gear effect; keeping the push in produces a proper gear effect from pre- to post-impact and a more predictable ball flight.
Channel: stayhandsy
Watch official source at 27:28