I just did. Had been smoking poorly [since it was new and only months old] and then was doing better. Had to do some maintenance so I pull the shell. To my surprise, someone’s dark blonde wig was in it. [:O] No joke. The wicking in it is a material like a cheap wig. Not that much either. Seemed not to have enough to hold any fluid. The fan seems to have more vanes than the Lionel units. Has a temp bulb or some kind of sensor to tell if the unit is dry. So I used the old Buckeye trick. I added some pink insulation and then put the “wig” back. This time I flooded it with smoke fluid. Man it smokes now. First time seeing a “wig” in a smoke unit. When I get time, I will do my other Atlases.
Chief, the “wig” sounds like it did not wick. In other words it was not a wicky wig but a wacky wig.[(-D]