How frequently do you activate MDM mode or DSC off (all nannies off) ?
Not embarrassed to admit that I always leave all safety nannies on. They look after me and the physical integrity of my 1M as good as possible (and judging by the DSC icon flashing it seems that I give them regularly some work).
Perfectly aware about the fact that drifting is fun, but I got to look after my family and myself and I don't overestimate my driving skills. Crashing the 1M could cost more than just the value of the car. But that's just my (fortysomething) view.
EDIT: in 2012 I also posted a 'sister thread':
http://www.1addicts.com/forums/showthread.php?t=779489 (
"Frequency of activating M mode (M button)")
For your convenience I add chapter 4.4.4. (pages 28-29) of the official BMW 1M Technical Training that you find
here.