The bar-end model the only kind to have, IMO. You can adjust it so that you can watch your massive left guad glisten in the sunlight as you drope the hamer on some Fred.
Seriously, I have one and it works pretty well. That said, I'm getting better at cranking my head around to eyeball approaching cars, because I got freaked out by all the stories of people, like Pharding, who got whacked from behind and badly boogered up. I figure if they look like they're trying to run me down, I might have time to bail. Obviously, this is only practical on lightly traveled backroads, but that's generally where I try to ride.
Lamentably, no cycling legends to meet on the highways and byways of Central New York.
Great story, nick.