hee hee,,, yeah man , groovy
anyways,,, back to reality... the ATB isn`t quite an open diff if you lift a wheel,,,it still does force conciderable amounts of torque into the carrier of the diff, even tho it does open similarly to a std diff when one wheel is in the air, just no where near as much as a std diff does.
Not that it really matters i suppose because "IF" you have a race mini & "IF" you have it lifting wheels then you`re not setting it up correctly &/or you`re driving to irratically

2 big "IF"s there, but for road use they`re just lovely,,, hardly anyone who has driven my mini noticed it in there.
But then young Chris Romano (Bob Romano performance,, Bobs son) took my mini for a spin after a dyno run up a while ago, & it nearly spat him into the gutter around Balmoral High school corner,,, but i expect that he was thrashing it but didn`t click to how good the diff was & maybe he was caught just a little un-aware of how well my mini grips & the torque produced from my engine is a little bit more than the average mini
yet again, just another example of how they don`t "FEEL" like they`re slippery diffs
& Freddys diffs are "sort of like" a cone type diff,,, he machines up std diff centres & crown wheels, makes up the grippy cone bits & fits spring packs into the centre etc & makes them into value for money slippery diffs