Tom, I have an '05 and got a Low Seat which is made for the '06 and it fits perfectly. I can't imagine there are any changes at all between the two years.
To my surprise, the Classic seat has a different removal procedure than the standard Rocket. In addition to inserting and turning the key on the right side, one must also pull on a ring on the left side of the bike. The plastic ring is between the seat and the rear fender and is rather difficult to get a hold of. I made it easy by attaching a black tie-wrap so that I can pull easily.
My wife really wants a wider seat for the back, and I know I can get a special seat made but then I have to mail in my seat.
Like the looks of the corbin dual tour, But I also like the Classic/ touring seat in the tourque magizine, just wondering if its wider than the stock pillion seat.
The Classic seat answers every question that has been asked of it...including the 2-up with my 15 year old son-a 200 pound youngster. He reports a good ride.