I think his fitness is better now than in 2012, so age isn't really a factor. And his mental toughness was on display in the 4th set. Amazing that he came back and won 5 games in a row to put it to a 5th set! Really incredible…so much respect for that man/player; perhaps even more now.
However, I have to agree; the forehand hasn't looked as lethal with the new racquet. And he's clearly not as confident in swinging out. I kept saying to myself, "I wish he never switched!"
The other thing I have noticed is that his slices aren't as penetrating in general. This is critical on grass…keep it low and driving and take time away from your opponent. Instead, many slices would sit up giving Nole a perfect ball to tee off on.
Yes, he had issues that he worked through on his back in 2012 and took both Nole and Murray at Wimbledon with the 90. Again, I believe his fitness is even stronger now having the right exercise routine to keep his back healthy. His gut was to stick with what has worked, was right. Here's hoping he goes back to it…I really think it will be to his benefit.