I'm quite happy with the bar end mirror. The mirror debate is always an important one for most people. A few years ago when I did my first track day I subsequently neglected to put my mirrors back on. Although it is EXTREMELY wierd at first, you do adjust. Most stock mirrors leave you viewing half elbow and half blur anyway.
I must admit that I was still nervous befor making the decision to give the bar end mirror a try. I was worried that it would take a substantial effort to look that far down to see the mirror...but as I said earlier...you do adjust. A head check is always in order anyway.
Can I read the license plate of a car 1/4 mile behind me...no, but I would honestly say that from an effectivness stand point, it works just as well as the stock setup. I don't have a hard time identifying "the man" either.
I am also used to a smaller mirror as I have some Arlen Ness mirrors on the Warrior. All the same goes for the Warrior.