It is looking good, can you clarify what focus setup you are using (area size, subject tracking, eye focus etc).
I have a setup with three buttons:
Shutter Button: No customization. Just have main settings to
AF operation: Servo,
AF Area: whole area,
Subject tracking: ON
Subject to detect: Animals,
Eye detection: Enabled,
Switch Tracked Subjects: 1
Servo AF (Tab 2): Auto
AF-ON: Customized
AF operation: Servo,
AF Area: Flexible Zone AF 1
Subject tracking: ON
Subject to detect: (not customized, just use the main subject selection)
Eye detection: Enabled,
Servo AF (Tab 2): Auto
Spot detection: ON (I think this is only used when Subject to detect is Vehicle)
* : Customized
AF operation: Servo,
AF Area: 1-point AF
Subject tracking: OFF
Subject to detect: OFF
Eye detection: OFF
Servo AF (Tab 2): Auto
Spot detection: (Grayed out)
Most of the time I just half-press the Shutter Button and get what I need. If it is having trouble I will go to the AF-ON button. Given the organization of the button and overall camera ergonomics, my thumb is naturally right over the AF-ON button so switching between the two is really fast! Sometimes, if I know it is a bit of a tricky scene I will go straight to AF-ON. If AF-ON fails, say there are too many branches in front, then I'll go to the * and get the focus on the subject. Once it is in focus, I'll switch to the Shutter Button (half pressed) and it will usually lock on the subject's eye. On occasion that will fail, that is, when I half-press the Shutter Button it will not lock on the subject. At that point, I'll just use the * button and operate in legacy DSLR mode. While this does allow me to get what I want, the images generated using the * button usually have the subject partially hidden behind something and I will rarely use those images.
So, if I were to guestimate:
Shutter button: ~70%
AF-ON: ~25%
*: 5%
It will vary by situation, of course. For instance, for BIF I use * 0% of the time 
