The flapper stacks on this one had bent hinges like it had been rested on the stacks, one I could not straighten so to keep the image, I glued the flap open. The other two are pretty much fine. The glued one looks ok, but I'm looking for some of these. It's smoking ok so far, but repacking with the 691SMKP008 is a good idea I think. We repacked a Lionel Veranda Turbine the other day and it smoked great...like an MTH I assume
The difference between the single smoke unit genset and the Vision genset is remarkable. The single smoke unit one is kind of boring.