The biggest thing to realize is it is clutch based, not a positive lock like the E-Locker found in the 150/250. In extreme traction situations, like off road the ELSD can get over heated. On road, and in light off roading, it is superior to the E-Locker, because it can send torque where it is needed. The E-Locker is a positive engagement, and is a true lock, 50/50 between the rear wheels. When the ELSD is in "Lock" mode there is still the possibility of slip side to side, because again, clutch based, and requires application torque to maintain that "lock".
