Well your best time on South is in that car is a 1:43.09 according to your post on 9/1. And then your best of a 2:40.2 for Full.
I hope I don't come off as a dick even though I have a feeling I will anyways... please know it's not my intent - honest! But here's why I think there is a disparity here and am more or less calling Shenanigans.
For reference, my best time on South is a 1:36.4 - on a super hot day (95F), set just two weeks ago. That's 7 seconds ahead of you on South.
The last time I ran Full was ~2 years ago, and while the car hasn't changed much - I do have a significantly better grasp of car setup today than I did then, and as such have a better alignment, damper settings, etc. - my best on Full on the RE-71R was a 2:44.9. (And based on data and optimal segment review, old/new video, etc. I guesstimate I'd be somewhere in the 41.9 range on a cool day today - but that's beside the point I'm making here.)
Down 7 seconds from South, and ending 4 seconds ahead on Full - implies you made up ~11 seconds on my time, just on North. Which, for reference, my best time on North was a 1:10.6 - set on the same 95F day as the South lap I referenced above. Unless you feel your driving on the South portion of the course on Monday was 7+ seconds faster than it was when you did the 43.
On the same day I did the 44.9 in my car, I took a friend's Spec Cayman for a session. It wasn't my car, I'd never driven it before, and it was my first time (ever) on Hoosiers - so I was deliberately leaving margin for error. Earlier that day, the car's owner (who I have a lot of respect for, as a driver) did a 39.9... so I was definitely chasing to see what I could put down - and did a 2:40.7 on the last lap of the session. So, while, yeah, I left a lot of room for error, this is a 2700lb ~295hp prepped race car on Hoosiers.
A low 2:40 - almost a 2:39 - is hustling. In a 4400lb sedan, on street tires, that's REALLY hustling. So, I mean, I don't want to rain on your parade... but with the math here + my previous own experience with Harry's... you can hopefully see why I feel this doesn't add up. If you're able to legit cut a 2:40 in that car then there are apparently lots of things I can learn from you - and I've been racing and coaching/instructing at ABCC alone for 10 years (and racing in general for over 25). So... yeah... I definitely want a ride-along.
Hell, legit lap or not, I want a ride along - that boat's gotta be hilarious out there.