One of my "projects" is trying to skull up an IWB sheath for a 14" Jag & Prem Sirupati. This is an excellent blade for general carry, but a bit too long for concealment. A Kydex liner, or some other cut resistant material, is highly desireable (saves unsightly slices in your BVDs) but most I've found are not "blade friendly", as to scratches, etc. A synthetic filler, sewn into the blade edge seam of the sheath would be ideal, but I'm stumped on finding anything that will work - Any ideas???