Innova produces K(en)C(limo) Rocs every year. For a period of time after KC won a world title, they highlight his victory ala the 12X's (he won worlds in 2006). I think that his 11th title was a couple years back, and they produced Rocs without the world title signification for a period between the last two titles he earned. If you look around, you can find 10X, 9X's, 8X's, etc., but they are becoming more and more rare, and quite pricey. Now that they are producing 12X's, the 11X's won't be produced anymore, so you'll see those become a little more valuable in due time.