6R80 Anticipated Shift Logic and 1-2 shift

So I have been reviewing some logs from my car (2017 S550/5.0L/Whipple), and noticed that at the track, the 1-2 shifts around 5-700 RPM early when I am on a tire and no wheel spin, vs if it spins any at all on the street or T/C intervenes it shifts right on.

It's only 1st to 2nd, the rest are within 100 RPM or so.

My OSS Upshift speeds aren't being met or even close
My Shift RPM table is set correctly, but it never achieves the set RPM before the shift
No other limiters are at play.

Has to be anticipated shift logic? I thought about turning it off, but then it sounds like you have to really have your clutch fill times and such dialed in on point.

I'm sure there are some good threads/reads out there about this, would appreciate any links or references to look at.