Weeeeeeeeeeeeeeeee!
Finally went below the 1 minute mark: 59.845
Also improved my splits a bit. Looks like if I put all my best sectors together I could go about a full second faster than even that, so, still have some room for improvement if I work at it.
Also turned my traction control off during this session, so my only driving assist was Active Steering on this new best lap. Didn't seem like turning traction control off made the car too much more fishtail happy (very slightly on some of the lower speed corner exits, but only a little), and feels like the car is maybe a bit faster now, with the TC turned off (I had it set to 5 before today).
Anyways, I'm feeling pretty amped about finally getting this result. Hopefully I can lower it even more now.