Looking forward to the replies in this thread. I feel I am somewhat in the same boat. I have done quite a bit more “tuning” than you, but I don’t always know if I am tuning in/out the right thing. Meaning, is the kart loosing the rear on exit because I have entry understeer and am therefore turning in to hard, then it catches and causes oversteer.
For what it’s worth, I think this is the case at least 80% of the time.