Rather than using La Femme to transfer the rig, use the Hi Res Dev Rig instead. Reason being, it's already set up for stocking feet and doesn't include all the extra toe bones that you won't need in your stockings.

There are morph injections for the Dev Rig in the Pose library, you will find them under La Femme > HR Dev Rig Injections. 

And if you have the La Femme Body Kit, there should also be injection morphs for the dev rigs included with that as well.

And even though you initially copy morphs and joint zones in the setup room, I find that weights transfer better in the Pose Room. So after you set up your stockings and return to the Pose room, you may need to load the Dev Rig in the Pose Room along with your stockings. Select the stockings, choose Figure > Copy Joint Zones From, and select the Dev Rig. Hopefully that might make things better.