The Wardrobe Wizard site is www.philc.net , not as above.    Wardrobe Wizard and Clothes Converter both seem to do a reasonable job on clothes, as opposed to footwear.   I prefer Wardrobe Wizard.   Regarding footwear, I have used WW to convert the V3/M3 Treadz boots for A3 very successfully.   On the other hand, I have lately been trying to convert boots for P7's Sydney, with no luck so far (that's with WW and CC).   On the other hand, I have used WW to convert both the V3 and the V4 catsuits for Sydney.   They needed a little bit of adjustment, but not very much.     V3 to GND should be pretty straightforward, since GND is basically V3, anyway (I have used WW for this);  likewise, D3 to M3.   As for small figures to big and vice versa, I have never tried it, but PhilC certainly supports it and he is renowned for the excellence of his support.   For the record, the current version of Clothes Converter does also support V4.