Two years ago I was watching Novak Djokovic play John Isner at the Miami Open. Isner launched a monster serve flat down the T in the deuce court. Djokovic turned, lunged but stayed on balance and blocked back Isner's serve with authority, deep down the middle of the court.
My awe for his return continued to grow throughout the match. How was it that Novak could do this time and again when others flailed?
The next summer I watched him again even closer, this time at Wimbledon on Center Court. What I witnessed was a revelation, a bit like how St. Paul must have felt when the heavenly light knocked him off his horse on the way to Damascus. But my revelation was the power of a great Unit Turn and Grip Change.
If there is one stage of the Framework where making improvement has the greatest and most immediate impact it is in the unit turn and grip preparation.