I wasn't totally serious about taking apart your lsd. 80% should be good for track use. I just wanted someone to feel my pain
I think you're on the right track beginning with camber (and making only one change at a time). I'll be at the track this weekend and can help you take some temps to attack this more scientifically. I can bring some of my spare front springs too if you really want to get dirty.
Also after reading your complaint about push upon throttle application, this describes understeer from apex to exit - correct? A little of this is ok in my book unless it's too excessive since it's happening in the unwinding phase of the turn.