I have found after years of screwing around with this, the very best and ultimatly easiest solution is to take the base mesh v4milwom, remap it this way, I use Lithunwrap its free and I find it is 1000 x better than uvmapper.

Yes you will have to do all custom sculpting in ZB without the benefits of Poser dials, but you end up with a superior finished model that will export morph tagets into Poser perfectly.

You can use an unwelded v4 from poser, but I got sick and tired of trying to work around seams