I seem to remember that the transmission does shift differently when cold, not due to traction but as part of the transmission control logic. It is related to the heat exchanger using engine coolant to warm the transmission fluid more quickly.

Also don't turn off DSC if you have sufficient throttle response to keep moving. If you are stuck and can't start, fine, but turn it back on as soon as you are in motion.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue