Anyway, pencil skirts dont' look good on this sister and I due to our body shape (pear/hourglass) so I went for A-line, with some shaping in the side seams and back waistline darts.
She humored me and posed in a messy kid's room at midnight, since she had to fly out in the morning....
these instructions. Basically, you draw the lines up from the size of the bum, and then calculate the excess amount in the waist. You divide this excess into 6 parts, then take out 4 parts in side seams, 2 parts in the back darts.
Also when shaping the "scoop" in the waist (to make it hang better, and not hug the abdomen), I have to keep at least 2" straight on the edges, and then GENTLY taper down to the depth at the center (1.5" depth center front, 2" depth center back). I also had to remember not to make sharp inflection points or it wrinkled.
It turned out nicely. I didn't do the waistband right at her natural waist, but a little below it, because I think that looks more flattering on women.
I was pleased.