You need to adjust the flow for the best smoke. It is easy to inject too much, which cools the hot gases in the muffler and ends up making less smoke, wasting smoke oil, and covering the plane with unburnt smoke oil.

I too turn my smoke on and off. Usually smoke on just before a maneuver, on during the maneuver, then smoke off shortly after the maneuver is complete. This actually makes the smoke presentation more dramatic.

How much smoke oil a setup will use depends not only on the user, but on the setup as well. Some systems smoke more efficiently than others. I guess when my systems are on, they use a bit more smoke oil than gasoline. Plus, when I said they will use about the same amount as gas, I meant comparing to an engine's gas use when running at full throttle, and we rarely, if ever, fly around at full throttle all the time.

AV8TOR