Got back to Grattan, finally. I was able to clean up a decent amount. There is still some time left on the table with some basics with brake/throttle overlap and tidying up T11-12, but I am happy with where I was able to put the car.
Also, I ran Track mode with all off for my last two sessions to give it a try. My thoughts are this: The car did feel noticeably different compared to PTM Race mode - enough that the first session I tried it, I had to get my self comfortable with pushing the car fully again. Just like the PTM/mode explanation by Tadge indicates (
https://www.camaro6.com/forums/showthread.php?t=496996; and others have mentioned) the car feels able to rotate a bit better and power-on feels a bit better/stronger. I definitely like it, it feels more natural, but I definitely had to "re-set" my brain briefly.
Best I did was a 1:28.70 with PTM Race (Race TC/no Stab/eLSD "Mode 3") and a 1:28.79 in Track/all-OFF (no TC/no Stab/eLSD "Mode 2").
Honestly, I feel like the potential between PTM Race and Track/all-OFF is minor; for the most part, it'll come to being used to one over the other/comfort.
Track= Grattan
Elapsed Time= 1:28.70
Camaro Model = 2017 SS 1LE
Date= 5/31/2020
Tires= GY SC3
Mods= PTM Race, Ferodo DS2500, RBF660, SS brake track cooling
Track= Grattan
Elapsed Time= 1:28.79
Camaro Model = 2017 SS 1LE
Date= 5/31/2020
Tires= GY SC3
Mods= Track/All-OFF, Ferodo DS2500, RBF660, SS brake track cooling