Went for a nice long loop today. The clutch was not perfect, but noticeably better. It was smoother and actually could be engaged a little ways from the grip, instead of right at it. Now I don't get that creeping effect when I have the clutch pulled in, in tight technical situations. I can have the front brake applied while turning a tricky almost full lock, downhill turn in rocks without having the bike get pushed or stalling. The new cable makes it easier to find neutral too(although that isn't perfect, just better).
The cable is built by MotionPro. You have to call them directly to have it made. They make a standard OEM style of cable for the WRs (listed as a 10-0150), so you have to ask for the Terminator or longitudinally wound housing version. It takes close to two weeks to get the cable after you order it. The cable costs 46.00 plus shipping. It is very heavy duty and thick compared to the stock one. It was a well spent investment for this particular bike. My stock cable is now an emergency spare, although I doubt that I will ever need it.
I'd say "mission accomplished"!