I’m not sure if it even makes sense but here goes. That was one of the more unconvincing yet dominating performances of Federer’s career, and I maintain that he’s not actually in the best of form this tournament. It’s a testament that despite that, he reaches the semi finals without dropping a set.
I just don’t think he’s ripping that backhand nearly as much, lots of unforced errors and generally in clumps at a time, but he’s playing so loose and with so much freedom that I don’t think he’s worried. He knows that he’ll turn it on when he needs to - late in the first set against Berdych last night for example.
He’s absolutely amazing. Not many players can play 7/10 the entire tournament and still cruise.