Originally Posted by ARPRINCE

My initial review...
http://www.bikeforums.net/road-cycli...l#post16835288

I find the just below the elbow placement (as seen on their website) is the best position. Think of it like driving a car. You sit and adjust the side view mirror to your satisfaction or optimal position. Depending on how you sit, you get varying degrees where you lose visibility.

Again, it all depends on your riding style and it suits mine just fine. Had several rides already and I won't ride without one. Actually on my third ride (2 weeks ago), I did not use it. I found myself checking my arm to try to look behind me... lolz.