Linoleum subfloor leveling

I recently did a floating install over a small walk-in area (about 50 sq. ft.) directly over linoleum. I did check for leveling issues beforehand and saw a couple of minor short gaps (maybe 1/8"). I did a shortcut using extra layers of small vapor barrier pieces stacked on top of each other to compensate for these two areas. For the most part, it works, but I can tell after all is said and done that it's not great either (obviously).

So I'd like to use a leveling compound. Can one use it directly on top of linoleum? I really don't want to have to rip that out and get to (what I believe is) concrete underneath it. These gaps aren't all that noticable anyway. The leveling compound I've seen at Home Depot and Lowes seem to indicate that they're specifically for use on concrete.

 

Not a pro but,
This previous thread may help you:

http://forum.doityourself.com/showthread.php?t=249065&highlight=leveling+compound+linoleum

As you know, taking short cuts doesn't work out very well.