I've found TC to be more dangerous in the Roadster than the safety its suppose to add, for example, when you hammer on the brakes and in the event Traction Control (TC) feels a loss of traction, it cuts TC off entirely which then makes you lurch forward in what feels and is now accelerated momentum forward rather than deceleration. Everyday, if its not raining, I'm always turning TC off for my own, others, and my Roadster's safety. By turning off TC in dry conditions I don't have this unexpected surprise that will take time off my deceleration time that essentially can help you avoid a collision or possibly loss of control in which the car could go off the road. With this I talked my my hardware engineer friends, discussed the issue and my requirements. The requirement being that I need to have a signal sent to the TC input, hold it high for at least two seconds, and then bring it back down to activate the TC off command upon every key-on event. Since the TC button becomes live on key-on, the key on can be taking from the live signal fed to the TC button, then bypassing the button, and sending that single back as a button hold. Also by pressing the button after the IC has set TC to off, I want to be able to disable this ON as we normally can by manually holding down the TC button. Lastly I want to shut-down this IC so that it does not automatically turn off TC but rather, allow it to fall back to its stock / always on state for the raining season where TC works its best and is a safety advantage feature. With that my friend turned me on to a "oneshot" IC. With that I can send a high signal after a specified period has elapsed. I also can bypass this IC circuit by putting a simple toggle / push-button which I can flip in the raining season. Just a rough draft at the moment, I have the IC, just need the time to build and test.