I promise that even talented car guys and guys who get paid big bucks to drive fast for a living would not be able to tell the difference between an n52 e90 with an open diff vs an e90 with an lsd all other things equal on dry roads and day to day driving.
330i ~ BMW Perf. Susp. ~ M3 Front susp ~ BMW Perf Exhaust ~ 3.38 lsd ~ SF71 Alf CSL reps ~ Pilot Super Sports ~ AA Tune ~ 335is front brakes ~ over 150,000 miles hardly broken in! WTB: e93 M3 Front Sway Bar