Felix,
The only two soaps here in Sweden containing sodium stearate also contains glycerin. One soap is a "block" for melting into your own molds, and the other is a regular soap bar sold as "glycerin soap".
I've made a batch of FWFL with the latter which seems ok as far as I can tell. Was I succesful because of low glycerin content... or?
How much of glycerine does it take before it becomes a problem, and how can you tell you've "got a glycerine problem"?
Urban