I'll give it a look. The shift points for TNAA4N2 and TNAA4Y2 are identical (as the calibrations are identical) and I don't recall anyone having complained about the shifting on the California (TNAA4N2) versions. I wonder if there is something specifically with the Excursions that mechanically may be different.
What's odd is that it only happens with 65+ HP tunes since the shifting generally isn't much different between the different calibrations until you hit the 120 HP program.
Anyway, thanks for the heads up.
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