Went with the Dx2.0 and I must say wow...The range is unbeleivable and the ability to adjust Your EPA to 125....I kept the the original s3003 servos until they strip then i will replace with the newer race servos.All in all pretty happy considering i sold the fm radio and receiver that came with the tornado for 75.00 bucks and got the dx2.0 for 139.99 my lhs matched thebarnfloor pricing.......Thanks for the replies.......J