I've had mine set at ~0.7mm form some time now. The weather has been really mild and not cold enough to really test it, but all throughout, no misfires. Today was -27C and the car sat overnight. I fired it up and no blinking or solid CEL. It really, really hated those temps, but onceI drove it and got it warmed up, it got over it .

I'll keep at this setting for a while longer and more cold temps before trying other settings.

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Daily Drivers:
- 2008 535i, 320,000km
- 2004 X5 4.4, 01/2004 production, 420,000km
- 1997 328i, 350,000km

Track:
- 1996 328i, track/race car, ~300,000km

Winter:
- 2013 Ski-Doo MXZ X 800 E-TEC, trail can
- 2007 Ski-Doo MXZ Blizzard 800 HO
- 2001 Ski-Doo MXZ 600 w/800 engine, exhaust
- 1978 Ski-Doo Olympique 340 (vintage race sled)
- 1977 Ski-Doo Olympique 340E