Man, what a bummer!!
I use air polys on my glass surfaces, but not on the liquid inside it, because I think you lose density doing that.
This image is like that.
I have air polys for the glass, but not for the liquid
http://img.photobucket.com/albums/v4...th_Bourbon.jpg
(click to enlarge)
it took a little time to figure out how to get it looking best, but it's worth it, and now I'll use that technique in all my work.
~~CM!