what I tend to do is lower the electric flaps for the pre-flight check but only retract them once I've started the engine. I may modify that and not touch them at all in very cold weather until after the engine is run
How are you going to check the flap runners then? Genuine question.
just on residual fuel left in the fuel system from a previous shutdown which was not done by mixture cutoff.
Aren't all shudowns done with mixture cut off?