Width of hips has absolutely nothing to do with width of sit-bones.
Length of nose has more to do with how she likes to steer and control the bike, and nothing to do with soft tissues.
Basically, you are toast trying to buy her a saddle just as you would be toast trying to buy her a pair of shoes.
Tell her what you want to buy her, show her the threads about sit-bone measurement, ask her how she likes to control the bike, THEN buy her the saddle that meets her needs.
If you really want this to be a surprise, buy her a B68 (not the B68S, which is the "short" women's version) from www.wallbike.com with the 6 month return policy. Show her the birthday present, shriek "TA-DA!", collect the thanks, and THEN go through the whole measurement process. Send back the B68 if it's uncomfortable, and order what sounds best to HER.
Last edited by KnottedYet; 03-02-2010 at 08:56 PM.
"If Americans want to live the American Dream, they should go to Denmark." - Richard Wilkinson