I think race car drivers would disagree, but then again, their differentials are a little better than what any of us could see paying that much for!!
BTW The e30 is EXTREMELY tail happy, just the nature of the car. My e34 can take off pretty good on turns in the rain and both had 25% lsd's.
I miss the e30, that thing was fun as hell in the rain....sometimes. On the highway, with the crappy tires I had, it was more scary than anything.