(I wouldn't normally wear all black like this but I just slipped the skirt on with the blouse I wore to work today!).
I cut size 42 at the waist blending to 44 at the hip. The only changes I made were to lengthen the skirt to 65cm so it finishes just below my knee, added a lining and moved the zip from the side seam to the centre back. My hip curve is quite extreme so zips never sit right in the side seam.
I think I've found my new TNT a-line pattern!