By default, ATR’s configs should behave fairly predictably. However, on some setups or for some riders, it may have a slight effect on the ride feel, even on flat ground. If you want to dial in ATR the best you can so that it stays mellow/inactive on flat ground and only kicks in on hills and rough terrain, follow the steps below:
Find smooth flat ground, and try accelerating at different speeds and different rates of acceleration. Go into AppUI → RT Data, and watch Accel Diff, under the Debug section. If you’re finding that Accel Diff generally goes negative, decrease Amps to Accel (under Float CFG → ATR). If it’s going positive, increase Amps to Accel. Try to dial it in so that no matter what speed you accelerate at on flat, Accel Diff generally stays near 0 (give or take a degree, which we will account for later).
Then, follow the same process with braking at different speeds. If Accel Diff reads positive, decrease Amps to Decel. If it reads negative, increase Amps to Decel. Repeat until Accel Diff stays generally centered around 0 while braking at any speed on smooth flat.
Be sure to not go too drastic on the changes to Amps to Accel/Decel. Generally, it shouldn’t take anything outside the range of 7-11 for each of these to get them dialed in. Most people run either 9/8 or 8/7 for Amps to Accel / Amps to Decel.
Finally, we can account for the remaining variance in ATR’s effect with ATR Thresholds. Make sure your ATR Strengths are where you want, then try all kinds of different acceleration and braking on smooth flat ground and see where your ATR Setpoint (not Accel Diff) maxes out at, both in the positive and negative direction. You can use that knowledge to set the ATR Thresholds accordingly, so that it does not kick in at all on flat ground.