I changed my wiper blades yesterday. My question is, no mater what car you have why is it the replacement wiper blades sweep area is always smaller then the OEM and the right bottom corner never seems to sit right with replacement blades? It's not like the manufacturers have special blades made that no after market company can match the size and flexibility, or am I wrong and every manufacturer has some workers chained up so the wiper blade secret is not divulged.