Hi,look all this mode does is obligate the tranny's module to relearn the adaptation,your way of driving,it doesn't reset anything.
I have the downshift issue even after tranny was rebuilt,now I am on hold for a new Valve Body,so I hope that helps to smoother the rear end bump.
But trans.shop guy said that it's not because it's worn or faulty,it's more of let's say design flaw.He went to BMW Dealership to have the Tranny Module flashed and asked BMW mechanics about a rear ending and was told that even newer ones are doing the same,not that harsh but they still do,even if the module was flashed with the software that supposed to resolve the issue.
That is the thing....I hate to drive an ultimate Driving whatever and to be disturbed by something like this.
It's really funny 'cause it doesn't do it while in the Sports mode......odd but true