A local shop that just opened stocked the Sprintech mirror. I purchased one and tried it that day. I am glad I did. Installs easily, easily adjusted, and does not vibrate. Gives good field of vision. I will use it more and then evaluate whether to use it solely or in conjunction with my third eye. I think that if I get one for the right side I will probably do away with the third eye.
http://www.indiebike.com/Gear/Bike-M...Dropbar-Mirror