I've tailored this quite a bit to get a smooth and pretty natural response but without a delay between head movement and view changes. I started with much lower gains (basically just the standard flight and combat) and then moved them higher.
Biggest thing I found is it's pretty fatiging at first so for the first week or so I only flew for maybe half an hour then took a short break to unwind. I worked up from there. Here are my settings, the only thing I'm thinking about changing is Yaw where as you look to your six the view tends to "snap" directly to 6 from maybe 5/7 o'clock. It's actually kinda useful but would prefer it to be a little more linear.
I found that background tasks can make TIR stutter a bit so I now shut down almost everything as recommended by Scuzzy. Also, you will probably want to continue to use your view hat for gunnery. Forward view with the hat switch forward locks out yaw and pitch movements and centers the view with the pipper in the center. With the view hat forward you can still shift your head forward/aft, up/down, and left/right to look over the nose or slide to the side.
After using this for a few months it's real natural. It was pretty easy to use right away for small (3-6 aircraft) fights but was more difficult for an intense 1v1 or large 20 plane furballs. It can be very disorienting in these types of fights at first. Also, you should practice low-alt maneuvering, especially the bottom of low altitutude loops. Depending on the design of your canopy and forward windscreen it's easy to lose track of your nose position relative to the ground. You'll be looking up a bit at the guy you're chasing while your nose is much more buried than you think. Take some time in the TA, DA or even just the off-line mode before diving in.
Yaw: 0:0, 2:1, 5:6, 10:11, 20:18, 30:24, 40:36, 50:57
Pitch: 0:3, 2:3, 5:19, 10:31, 20:40, 30:45, 40:50, 50:53
Roll: disabled
X: 0:2, 2:8, 5:32, 10:57, 20:73, 30:79, 40:79, 50:79
Y: 0:2, 2:11, 5:38, 10:55, 20:66, 30:73, 40:79, 50:79
Z: o:1, 2:17, 5:57, 10:75, 20:79, 30:79, 40:79, 50:79
Smoothing is set to 60
Mace
