Has anyone tried the Dunlop 606 rear tire? Dirt Rider -- April 2000 -- did a report on it and gave it a 9 out of 10. Says great traction and extremly long lasting. One guy put on 1600 miles before replacing . Another was used in the Vegas to Reno desert race (Husaberg FC 501) and came through in great shape. Seems I saw that Clark (our Clark) uses one these. Anyone have an experienced opinion on this tire for a WR?