Great comments about the wheel bearing grease and the importance of a medium. Their is a lot of argument about what works and doesn't, I don't partake. Because a bolt system doesn't create the heat an auto system does we don't need to worry as much about thermal breakdown. Bearing grease is nice because it is thick, vicious and can be applied easily. The other nice thing about bearing grease (My team, and several others continue to use over in A-stan) It keeps the dirt off the metal and is easy to take off with just a shirt sleeve or sock! Above all, remember whatever you choose, use it consistently, its the only way to ensure accuracy.