I have a 2008 ZX-14 and a 2007 FJR. I do a good bit of sport-touring on the ZX-14. I have some soft luggage for it and whatnot. For me personally, when riding solo, the ZX-14 with nice soft luggage sport-tours just as well as the FJR. I *really* like the smooth light clutch, throttle, gear-box and engine. In fact the FJR feels rather "truck'ish" in comparison. Even with a bit more weight on them from the riding position, my hands/wrists actually suffer *less* on the ZX-14 with the very light clutch and throttle.
The FJR does have better foul weather protection with its fairing and adjustable windshield - but for me, only slightly so. The ZX-14 will blister the FJR at any speed and RPM - especially at speeds over 80-90mph. The FJR really shines when you are 2-up, especially if you need to carry some stuff for 2 people. The ZX-14 plain sucks 2-up and sucks worst if you need to carry stuff.
Rumor is that the ZX-14 will have ABS and traction control next year. If so, just add some nice soft-luggage and call it day. I would not buy a C14 over a ZX-14 for touring - you just lose too much and gain very little - IMHO.