Murray hasn't impressed much this week but I trust him to play well when he needs to and in particular peak for the slams as he's been doing. Hopefully with the weight of the slam off his shoulders he'll play better in the Masters as well and give him a chance at No.1.
His serving has been good this week with 71%, 65% and 70% 1st serves in while still hitting 15 aces.
There is no need for him to play his best tennis against these guys. He'll save his best for the later rounds at AO, he knows what he is doing this Slamray.