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OP: if you havent already pls read the sticky on PTM (and other nanny) functions. They VARY A LOT in terms of the car's behavior and picking a right set up will absolutely make a difference. I am going to make a guess that for your purpose (straight line runs) you'd likely like Competitive Mode, which turns off TC so you have full control of power with your R foot, while retaining Stabilitrak in case you exceed safe yaw parms.
You may also wish to experiment with PTM settings and see how they suit your purpose. Cheers!
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