Hi, I've been fitting a muslin bodice for my daughter and I think I've got it now - she has a bit of a buddha belly so I've lengthened the middle on the front and left out the front darts. The interesting bit is the back, where there seemed to be lots of extra material lower down (but it was snug at the chest). I followed some links to discover the sway back adjustment which seems to be the thing. So, it fits when I do both the pattern vertical darts, and a horizontal sway back dart. The question is, is doing both of these OK? And does it matter which one I sew first (I did vertical and then horizontal on my muslin).