We've all experienced the dangerous blind spot, especially when moving into the passing lane. Our original equipment mirrors just don't have enough of a viewing angle. Accepted practice is to turn your head and look over your shoulder behind you. In tight traffic that's dangerous - your bike has a tendency to go where you look! I put one of those small convex blind spot mirrors on the glass on each original mirror and have them adjusted so that I have NO blindspot. (Same thing on my minivan.)
I understand there is a company that makes full replacement mirrors with convex glass - anyone heard of it? How does everyone else handle the blind spot problem?