That's a good idea, and appreciated. But the other thing I am doing is flying all of the locations (using the RTMM Flight Plans.zip folder). The reason for this is not just the smoke, but looking for any other problems that I might spot in 4.1. Thank you for the idea though.
As an update, I have IS3 working ... I did it with virtual bailing wire ... but it is working. I worked on Misty's Place this morning and have the new file out to QC (Spud and Norm). When they give it a "go" I'll post it. I fixed the smoke problems, re-positioned the water runway lights, got rid of the rocks at the north end of the runway, eliminated some flashing buoys, took out the cabin and put a new one in with the new "Smoke Bomb" as we are calling it. (This is an object Rod built for us ... a black ball, that we can "place" where we want smoke. It is not affected by 4.1 or altitude.
So if this all goes ok, I'll be starting on the "workshop log" in earnest.