V4WM is V4 that has been weightmapped for better bending in Poser 9 and above.  It also uses fewer resources, since the JCMs and many magnets have been removed...

http://poserplace.phantom3d.net/V4.2WM/V4.2WM.html

 

Outfitter to convert V4 clothing to V4WM:

http://poserplace.phantom3d.net/PP_Outfitter/pp_outfitter.html

 

Both are free and Open-Source...

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