I can't seem to make this work propoerly either. 

There's potential there, but no matter what I do, the legs are always poking through.  

And the more I change the other dials, the worse everything else becomes. I followed the tutorial in this link Usage Tutorial

I think the developers need to take another look at the legs, but at least some form of cloth room replacement is being offered, and it's not too dissimilar to what we had before.

(I'm using La Femme 1 and the Mona Dress, both of which come with Poser 13 (I'm currently using the trial for Poser 14).