Back in Poser I invoke PML's PoseMorphLoader script. There's a warning about potential figure corruption with PML. I'm here to tell you that after easily more than 500 morphs (probably more than a thousand to be honest) created with it I've never had such a problem with the script. Nor have I EVER experienced any problem with PMD morphs or scene corruption. Ever. And I can't even fathom how many times I've saved with external binary active. Just wanted clear that weird phobia that people have up. Maybe some people have had problems with pmd but I think that was prior to Poser 8. I've never seen it...

I name my morph Demetra_Diabolical. Hit Go! Select my initial reference obj from the dialogue and than select my difference obj from the dialogue. I make sure that make FBM dial is checked, and do not create empty local morph targets is checked. PML does it's thing. There's a weld split precision and morph precision pop up. I've never encountered any weld splits nor perceptible morph imprecision. If there's any imprecision it's not visible to the eye. Morph delta changes below a certain number are ignored, this number can be modified via an option in the script, I use the default.