I have no advice on the subject but I might offer a point of interest. I was listening to the cycle world podcast and they were discussing how the Kawasaki triples handled like they were hinged in the middle. Kevin Cameron said that it was common to find no oil in one or both of the shocks right from the factory and simply upgrading the rear shocks would solve a lot of the issues. I can't imagine Yamaha and Suzuki used better quality shocks.