Yeah, I understand that is the received knowledge. It strikes me that it's more of a FWD danger, where you can lift a driven wheel under power. In RWD, the only way I can think of doing it is by taking a sausage kerb shortly after the apex, while putting the power down. Very much a racer specific scenario, fair enough. The other thing is, how would this be any different to on open diff? I'm assuming the damage is due to an airborne wheel spinning up to a crazy speed, then suddenly decelerating to ground speed as it lands. Am I missing a difference in this scenario between ATB and open? The reason I ask is I'm considering flipping the table and going back to ATB, since after 3000 miles (approx half on track) our BMW Titan is down to about 2lbft of preload, i.e. toast and I don't want to have to revisit the diff more than once. I didn't notice any trackday benefits of the plate LSD over the ATB we had in the original Sierra units, and I'm not a racer and don't intend to race this particular car ever. So please fill in my gaps if I'm missing something, I'm still not fully decided on my course of action, but I'm definitely erring n the side of a fit and forget option that I've had previous good experiences with.