I use the dampers that came pre-installed but I'm getting a considerable amount of vibration (see video below) and wonder if I need to switch them.
http://www.youtube.com/watch?v=qKPInZr5vfo&feature=c4-overview&list=UUuvT_0LvRWDt62ixGoE3sVw
http://www.youtube.com/watch?v=qKPInZr5vfo&feature=c4-overview&list=UUuvT_0LvRWDt62ixGoE3sVw