Its like a Realistic smoke system. Here is the extra smoke. i really like this. I was at a show near Bristol UK, and a guy had is pitts hovering with smoke on right by the ground and you ended not being able to see the aircraft. He pulled up out of it, and looked great. You can do that with this edit. Enjoy, and sorry for the 2 different AV's but not everyone enjoys lots of smoke (Frame Rates etc). It is realistic smoke, not in your face and annoy everyone on multi smoke ;-)