It depends on what your looking for. The best way to do it and keep the morphs would be to post work it using cloning tools and the such. If you're a purist and don't want to do post work (or dont have the utilities to do it) then tweaking the V3 morphs would probably be easier, unless you can get away with hiding the body parts that are giving you the poke through. A third way would be to export your clothing in the Zero pose and then reimport them as props and use them as dynamic cloth. There are tutorials on the net on how to do this. This doesn't work with all clothing though.