Yep, looked at those. Not a real strong case on which to go with. I think I will just go with the R&G's anyway. The one comment that I did find rather credible was the spreading of impact forces across a larger area like the R&G's do versus just the cylinders with a single attachment point.
I've spent a lot of time looking at sliders without a great deal of first hand advice. A surprisingly large number of Ninja owners don't have them installed, in spite of the general belief that they're a good way to protect the fairings. One of the young squids at work had the brakes lock on his Ninja at slow speed. He got pitched off, and the bike went down hard on the right side. He had Shogun single point sliders and the pin bent back nearly 90 degrees until the plastic protector was touching the fairing. He scraped the bar end and his mirror, but no damage to the fairings. I could see that it would be easy to break that single bolt right off in the engine mount though.
I ordered the R&Gs from Revzilla like you did. They'll be here Monday. There's a good pictorial of the install on the Z1000SX UK forum.
What the hey, it's only money, eh?
BTW, the UK guys call them "crash bungs".