I need to get new tires for my 2006 RR Sport and went into America's Tires today. Their website had listed the Yokohama YK 580 as an option in the size (255-50R19XL). However, the store manager said that they were not allowed to install the Yokohamas on Land Rovers because of some issue with compatibility between the tire construction and LRs?? There was even a big 'bulletin' on their internal website. Has anyone heard of this? Any truth to this? Their suggestion was to go with the Bridgestone Duellers . . . does anyone have experience with them?