Hey John, I actually dont ever run with the smoke on outside. It always ends up with getting smoke fluid residue everywhere and with the winds in Kansas it just cuts the smoke off right at the stack anyway so it just becomes something else to have to mess with and I like to just sit back and watch them run. NOW, for train shows I will turn the smoke on (if allowed) and in a still wind environment it's REALLY impressive.
Photos courtesy of Cliff Couch (Stumpy)
I wish I had taken video from that show, we smoked the place out. You could smell the stuff on the other side of the show hall and the place was HUGE. *laugh*