My pleasure. I just take joy in finding logic and reason behind the little miracles.
There is science behind Roger's Neo Backhand. I've also read somewhere than since his racquet change the speed of his strokes increased by 2mph and this year it's higher by 3mph (I assume it's another 1mph, not 5mph delta in total). Taking the balls earlier and hitting them faster and flatter inevitably results in much deeper landing. It all makes sense really.
Maybe he's prepping his fans for a new line of excuses - the courts are not large enough. They benefit Federer and handicap Rafa.