I am happy to report that while I still have had no luck in getting anyone to do a Mag check, I was able to pull out my slider about 1 inch with fantastic results! With the feed setting on 2 and combustion on 3, my glass stays perfectly clear for about 2 hours. At about 4 hours I am starting to get a VERY faint translucent film. The only weird thing is that while I have a very active large flame, most of the flame is on the left side of the burn pot??? I tried the meat thermometer thing, sticking the probe into the exhaust tubes, but it shot above 190 so fast, it scared me...(really) so I ended up holding the thermometer sideways with the probe 2 inches from the end exhaust tube on the far right ( so that I wouldn't bake my hand) and the temp still went up above 190, so I guess I am getting some good heat. On the more serious side, I have a exhaust clean air question. Am I correct in assuming that a overly rich, less air mixture that produces a thick sooty black glass, emits more particular matter than a perfectly tuned stove with a glass that appears very clean after many hours? Curious...Bill