I have programmed to articulations for Naturals, one for pp and pp articulations, (Playback Tech. Combinations) and one for p and up (includes mp, mf, f and so forth)
I also have a Natural with conditions for medium and below (playing staccato samples).
Now the playback engine defaults to this latter expression, playing staccato samples and not taking into account the dynamic conditions of the two former mappings. (Half notes played with staccato samples are just plain wrong 
How can I get this to work? Using pp and ppp markings as add on switches will just mess up all other articulations as well. So, what do I do?