I struggled with my serve for a long time. I understood the whole mechanics, watched tons of videos, got a session with a coach specifically for the serve, nothing worked. It was either too high or straight to the net. And then by some weird accident in the initial phase of the movement I pulled my racket way beyond the back of my head, like some pros do. And it clicked like a charm. The move turned into a perfect ark, slicing and pushing the ball, shoulders and wrist moved freely, continuing the move after contact with the ball. The ball suddenly started flying like a sniper hit, with precision, low altitude and reverse spin. More importantly, I achieved consistency with my serve. Trying to analyze what happened, I concluded that my somewhat long arms lacked necessary space and maybe speed and freedom to move before contacting the ball. Maybe a shallow swing would work for short-handers. The whole incident felt enlightening, inspiring and overwhelming.