On WPG off-the-rack kilts, hip size?

[MrLion]

I've been looking at the WPG kilts as an option.
http://onlinemilitaria.net/shopexd.asp?id=1671&bc=no

My question: does anyone here have knowledge of or experience with the size of the HIP difference measurement?
Rocky from USA Kilts has said his off-the-rack casual kilts have a hip measurement 4 inches bigger than the waist.
MY hip measurement is about FIVE inches bigger than my waist measurement.
I DID e-mail Jerry at WPG already and asked him this same question. His response was "I don't know, they are military butt size." (I enjoyed the humorous response!) Alas, I'm past a miltary-butt prime build these days.

Any help would be appreciated.
Thanks