I bought one of these at the rally and Dave installed it on my '04 F650CS for the ride home, but it doesn't seem to work properly. I tried it several times, tightening it down as far as I could, but there doesn't seem to be enough friction created to actually hold the throttle. As soon as I relax my hold on the grip the speed starts to drop. Any suggestions on how to improve it before I pack it up and send it back? I have emailed Wunderlich for help as well, but they're out of the office for another few days.