Just replaced the front E3 after 13,000 miles. Still had around 1,000 left, but down to the wear bars in some places. Put on an Avon Cobra, mounted myself with the Harbor Freight changer. Used Windex as a tire lube which worked well. Installed 1.75 oz dynabeads. So far it rides very well, noticable difference, better handling in the twisties.
Love mine with a CT rear. Great handling.