Long shot, I know:

Would anyone know why (most) *American + European* patternmaking systems draft bust (= side seam) + either shoulder or waist darts for the front of women's bodice slopers, while the *Japanese* Bunka system drafts an armhole + 2 waist darts, with 1 of the latter pointing towards the armhole, not the apex?

Is this advantageous for more flat-chested women?

TIA

#patternmaking #patterndrafting #bodiceblock #bodicesloper #sewing