Chuck,
I pendulum'd my e39 m5 off the road with DSC off once, and the F80 - for all it's advances - is both far more powerful and significant lighter in weight. I have nothing but the utmost respect for it and won't be going DSC off on public roads for a long time. As invasive as MDM is, it's still an excellent middle ground for public roadways.
Thanks for the offer to go for a drive. Next time i'm down there, I'll shoot you a note
This coming year will be my first "track year" ever. Planning on driving the f80 there, tracking it, and driving it home for 2-5 events.