Locking effect/torque bias ratio should be higher for the Torsen vs. the Quaife, which means better traction performance. FRPP got too much wheelspin using a Quaife with the FR200, the Torsen didn't.
Doesn't this mean that the Torsen will have a greater tendency to yank the steering wheel out of your hands? It can be bad enough with the Quaife when goosing it with the wheel largely turned...
-Lance