Have you tried different tire pressures to see if it helps any ?
The Continental 'Twins' tires that came with the bike, RB2 front, and K112 rear, were not happy with grooved pavement, the Metzeler Lasertecs don't seem to be quite as prone to getting 'nervous' on this kind of pavement, I'm running around 40 psi front and back .
Also, if you have an incident on grooved concrete, it abrades away flesh and bone at a higher rate as well .