I will keep this in mind. Perhaps my pressure wasn't correct on my tire and it was wearing far too much. I've heard the Metzeler's are really good from several people here in town AND on the forum here, but I may give the Dunlop's a second shot for simplicity and money's sake, as I found a set of 404's online for 103.99 and free shipping.
on my 600 the rear dunlop tire had over 20,000 miles (35-38psi). Something is definitely wrong on your wear mileage. There are better handling tires that I could have bought, but chose dunlops again for the rear for the mileage. Cycle Gear has DUNLOP D404's (170/80-15 rear) for $135 (free shipping over $79). And unlike some suggestions of where to buy, I have personally bought various items from this online retailer and without problems.