Absolutely yes. Without a doubt the O setting has allowed me to control the car in a much more precise fashion and mistakes that used to result in sea shell hunts or lawn mowing expeditions, have since become nothing more than brief squiggles in my line. Just getting rid of that dead zone in the wheel helped. Not having to hand over the wheel for tight turns like at monaco, to get the cars wheels to lock, is more than worth it for me. There is no way I will ever use a 900 degree wheel setting in any racing game.
If you read more in that thread there are other testimonials to changing that setting to something that feels better to you. Mileage may vary though.
It seems I have a bit more to say about this.
In our real cars there is steering lag. When you start to turn your steering wheel, the rod it's attached to turns a gear or tells the pump to start pumping. The time it takes for your input to hit the tires is the lag. The thing here is, if there are no failures, mechanically or hydraulically, that lag is a constant value. It won't change. You can account for it to be what it is and plan accordingly.
The internet however, is entirely variable. You move the steering wheel, that input is relayed to both processors, CPU/GPU, that data is then sent to the NIC and it sends it downwire, across however many hops (all of them having CPUs and NICs as well) there is to your opponent's NIC and then their CPU and GPUs have to process before it can be displayed on their screen what you've done. There is lag at every step and it is not always stable. The processing units heat up and this will slow them down. The internet will always be unstable and cannot be relied on to maintain anything close to consistency. To many variables in to many different hands. A 50 millisecond lag spike at the moment you begin your input is an almost unoticeable delay. But when that spike goes over 100ms, 500, 1000? That's when those events occur that leave everyone wondering, "WTF just happened?". If your ping rate can be measured above 100 to your own ISPs equipment, your inputs are already at a 1/10th of a second deficit. The O setting takes some of that lag and reduces it by reducing the time of the original input. Think about it. If you're using 900 degrees of rotation and it takes you 1000ms to get it there, I'm not sure I could go lock to lock with 900 in less than 1500ms, and you pull 300 degrees out of it...
There's 3/10ths+- right there. Not that it'll matter, if you get a 1500ms lag spike when you're doing it though.
Just some food, or fuel if you like, for thought.
(2nd slot opens up)
(one slot opens up - Taken by Elsbury)
And you were asking me for tips 
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