Hair canvas requirements

[Kitfoxdave]

As on older gent that has had multiple hip surgeries, there is a lot of scar tissue in my left hip in the back, scar is approx 10 inches long. Until I started wearing kilts, the area just below the belt on current day trousers and jeans got rather uncomfortable both skin and muscle underneath. The kilts I currently own do not have the Hair Canvas and stabilizer installed, (100% Scottish wool tartan 13 oz.) and are quite comfortable to wear as the waist and belt are higher.
I am installing a stabilizer in these kilts and also thinking about installing the hair canvas as well. My concern is would the Hair Canvas be more of an irritant due to its vertical stiffness? Perhaps a less stiff interfacing would be more appropriate for comfort?

Your feedback and advice would be greatly appreciated!

Thanks in advance for sharing your experience and knowledge,