I ran into the same problem and PMd AlanH-see my thread on the corduroy X-kilt for the solution.
http://www.xmarksthescot.com/forum/s...ad.php?t=25353

Oh, and by the way, welcome to the forum! I just realized you have already looked at the Corduroy X-kilt thread-the info you need is the bit where I had to rip out the velcro and sew it OVER the deep pleat. Then, when you anchor the waistband it will also add some strength.

Be well,