Don't like the leather sheath that came with my new wave, it's not even leather. The leather sheath that I got with my pst (old) is much better. The nylon sheath that came with the bit kit is nice and useful, but will abrade and deteriorate with hard use. the weave is of the softer variety.
why do you like horizontal carry?
I prefer nylon as well...
velcro. I hate it