Smiling 411A
Pleased you were able to smile 411A. I also have operated L1011 and RB211 powered B747's in very cold conditions (Kimpo in mid-winter as well as Narita, Osaka etc). I have never witnessed that amount of smoke on start from any engine regardless of ambient conditions. The engine start shown on the YouTube clip took almost 3 minutes to stabilize at idle, inordinately long and smoking for about two minutes hence my DO NOT NORMALLY statement. I also would debate your claim that a wing engine, if started in isolation using only APU bleed air, will spool up quicker than No 2.