Smelling the Burn Line??

[El Niño]

Anyone here a professional "burn-line sniffer"?

I hear the Lounge Lizards mention it as a way to get different aromas and notes, but every time I try it, I get a seem to just get a nose-full of smoke that burns. 

[NYGuido]

I do this but in a very specific way. I watch the smoke to see what direction it's going. Then I make it so that is the direction the foot is pointing. Finally, I smell the burn line (or near it) so I am sniffing away from where the smoke is going.