https://www.ft86club.com/forums/showthread.php?t=25494
auto-lsd is the feature that messes with track duty, doesn't happen under braking, happens under throttle application with one wheel too lightly loaded/bad traction so it starts spinning up and the computer brakes that wheel to prevent you from one-tire-firing out of the corner, but if you're smooth on the gas you're faster without auto-lsd.
Messes with the car big time over yumps and shitty pavement, not sure how patched up RA is these days but taking lots of curb can induce weird behavior as well, and again the car clamping down on the brake is slower then not if you can hang onto the car.
disabling ebd can help with rotation under braking but you can get pretty good just by playing with toe settings and managing the weight transfer
You can have a pretty good time just with the button press, pedal dance will make the abs dumber so you better be good about releasing brake pressure through corner entry otherwise I doubt pedal dance will do more then stop the auto-lsd feature from kicking in those specific corners and you'll have to adapt to the new behavior elsewhere, which if you're ok in the SM you should be fine in the 86. Sounds like you got 9/10ths the experience of an 86 and with an SM I would hesitate to dump any more time/energy/money into the 86 as well, other then a set of camber bolts for the front and some decent pads just in case you find yourself out there again.