One of the guys at the garage when I picked the car up said they had lit one and placed it on the ground standing up as you are supposed to do and it melted a small circle of tarmac under the flare. You strike it like a giant match on the road.
My Flare's there too. Sometimes it flies out under hard acceleration to add to the buzz! Ever tried driving fast whilst frantically scabbling around in the passenger footwell to avoid accidental incineration? Fun....
i think the flare should be removed for sva because it can come out whilst you are driving/in emergency.
Maybe it is like most things, once sva completed, everything put back on the car (naughty).
I once had a car fail sva because the radio had a button that protruded from the dash by 0.0001 (exageration) of a millimetre.
strike it up, hours of endless fun!?
scary bit is trying to put the bugger back out again.