I always look for how it's done in large scale and try to make that work for my small scale.  Companies figure out how to be cost effective so if a diluted solution would work for vapor degreasing it would probably be used in industry.  That's not to say you wouldn't stumble across acceptable results trying it.  What's the harm in trying?

Most thoughts aren't original, but I was hoping to find someone who explained the manner it failed in.
There is prob. a reason since most people go through the effort of "making" the vapor-smoothing-station.

But you got a point, I should try it myself.

As I said, not with concentrated Acetone, but rather with diluted Acetone.
Gravity does it thing anyway, no matter what.

This can cause a dripping effect on the print though.  The vapor run provides a more consist finish and the whole process from start to finish takes just a couple minutes + drying time.

Since I have not tried it, i'm putting it out there ...
Do you really need to use Acetone-Vapor to smooth your print?

Since dipping you model in concentrated Acetone would most likely melt your model in no-time, but how about diluted acetone? Why not dip you model in a diluted fluid, letting it sit for a while, stir and repeat for hours / mintues for controlled smoothing?

Have anyone tried it?