Louis,
The great thing about the Raydyots are that they are the concave racing type mirrors that give a much wider field of vision that standard flat mirrors making it much easier to adjust the mirrors to cover the widest field possible. Of course, that means that you have to remember that the concavity causes things to appear to be further back that they really are, but it's not a big deal.
They really do make a big difference in rear vision and the vintage look of the mirrors (Brushed aluminum on black pedestal) is a nice addition to the car.