Barb,
Thanks so much for taking the time to answer my question! I do really appreciate this!

The kilt belt at traditional waist does not bother the scar tissue, but a normal belt worn at current saxon wear waist does irritate the area quite a bit. This was one of the main reasons I was asking the question about the stiffness of the hair canvas in that area.
There is no issue with my back when wearing the kilts I own at the traditional waist with a kilt belt.

Thanks again for your insight.