XPlane Differential Braking built in to code GOOD n BAD

Through various betas of XP12 I have had issues with the way aircraft behave on the ground with hard or large left or right rudder inputs on the ground at low power and speed basically stopping the aircraft dead on you - making you center the controls and start again from my perspective it made for very awkward handling on the ground in tight spots. I went through the joystick control calibration routine where I also discovered another thing that XPlanes joystick controls - sensitivity sliders and then the control response curve are basically doing exactly the same thing (According to Austin they are thinking about changing it when he can get the curves sorted) So that was one find on this journey to resolve the issue so you either use the sliders or the curves or not both as they will counter act each other - go figure on that one. Now I just used the curves to adjust control feel and leave the sliders at 0. 

Back to topic - using the DATA OUTPUT facility for Gear and Brakes showed that when hard rudder or yaw deflection was applied on the ground that differential braking was being applied even though I had no such set up either via a LUA script or via the Joystick setup. It turns out that it is coded into XPlane (since XP11+) as a helpful feature (draw your own conclusions about that) to help simmers control the aircraft better on the ground. The cure is to go into PlaneMaker and gear data and change the values set by default to what you need, zero or lower depending on what you experience and that then gets rid of the problem - no more auto differential braking on the ground. 

So if you have wondered or experienced this now you know. My gripe was that it made control of a tailwheel aircraft with castoring wheels very difficult to control and caused very undesirable swings on you. At least I have a fix now!