Run that range for about 2 hours yesterday and found that out. I will be looking into carbon fiber bars to dampen the grip vibs.
that or heavier bar ends should work, liquid bar snake is also suppose to help. There are four rubber dampers on the OEM 06 triple clamps. I am adding another smaller set of dampers to mine. Also throw a couple of extra rubber washers on the front tank mount bolts near the triple clamp, seems to help.