Thanks all for excellent info.

My newest question is:    apparently the problems with V4/ M4 install,  into Poser, are blamed on Daz,  and their poor/ or suspect coding.

So, will l'homme in --  Poser 11, 12, or 13 {?} --  have flawless install of morphs - from the simple get go ?   { being a modern Bondware coding? } Or are their potential gotchas and problems, possibly lurking here as well?   { tutorial available? }

thanks