When WW -> MC have given less than desirable results (cause of a more drastic morph or body shape change), Lyrra's magnet sets have helped me out.  I have the Girl and the GND4 and both do a better job for the first "fit" (form v4 clothes)...then the MC morphs added from the figure add the morphs I need...after.

The magnets give you more control to fit, after the default fit.

It does take more work though...

Just another option