Installed Federal Tires
 

New tires. About 250 mi on them. They are a lot more quiet and feels more comfortable. I did some spirited driving and pushed them going on on-ramps at the same speed as the Duelers. Right now the sidewalls don't seem to roll as much as the Duelers. Less effort for steering input while driving. Takes a bit more effort to turn them on my pavers. No rain yet. Sunny San Diego. See how they go from here.

New
Federal Courigia FX
255/50ZR19 107W XL 320A A BSW 10/32 29.1
285/45ZR19 111W XL 320A A BSW 10/32 29.1
Total Cost $590 Out The Door

Old
Bridestone Duelers HP Sport
255/50R19 103V XL 300A A BSW 10/32 29.2
285/45R19 107V XL 300A A BSW10/32 29.2
Total Cost $920 OTD

A couple of pictures. Nothing crazy about the tread pattern. The rear picture of the Dueler has same amount of wear on other side. The front Duelers were new about 10K ago. Front Dueler that's worn on the outside tread is fixed, all new suspension and steering components in front and rear. Ran them about 3000 miles like that.
BMW X5 Federal Tires by pr1aw | Photobucket