Yeah, but...If you only hand strop, that bar should last you the rest of your life. I'll probably put mine in my will to my son. He can give it to his son. It doesn't take much on a strop to do the job. If you can see green, it's still working.
Stitchawl
I find that I'm starting to collect(and try) strop/buff/polish compounds...as well as knives ! At least their usually cheap!
Just soak a scrap of manilla-folder cardboard with lighter fluid, rub on the pooky of your choice, let dry and strop away...
Some good ones are:
Sears Green,
Dico SCR (white, for stainless),
Harbor Freight Green (fine), and Black (coarse),
Dremel red rouge,
Metal-Glo Polish,
Pol Metallpfledge (scientific instrument polish, http://www.loeneninstruments.com/index.php?catid=499 )
BTW, if you find some powder buffing compounds (or sandblast grit),
you can make your own paste/bar polish by mixing the powder with Johnson's
Paste Wax (carnauba) 'til it barely holds together. Then smear on the strop and go.