Mike, that's a great question and I hope Bill answers it. My own opinion is no, there is no "learning" with a custom tune. I base this on two reasons:
1. My shift feel seems just as good now as when I first programmed the truck about 2 years ago.
2. If there WAS a "relearn" mechanism, it would kind of defeat the purpose of custom tunes.
However, I have no real facts to base this opinion on. So, it will be nice to hear from "The Man"!
- Jack
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2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam