Glamorous Vickie and Hi-Fashion Vickie have their hands scaled overall to about 90%, and the X scale scale set to about 111%, which producs a hand that is about the same size but more slender. It also seem to produce minimal distortion. You need to do the hands themselves plus every finger/thumb joint, which is sort of a pain, I once had a scaling pose around somewhere for this but I don't know what I did with it...