Overall Black Diamond has really scored with this pole, and I'm looking forward to a second full season of use with mine. The feel on the trail is very solid, with almost no rattle (similar to the Leki, and vastly superior to the Raidlight), and provision of a very stable platform of support.
The Black Diamond Ultra Distance Trekking Poles has been renamed the Black Diamond Distance Carbon Z. Black Diamond assures us the changes are just the new name with a different paint job. So, if you find the Ultra Distance on clearance sale, buy it. Or, buy the new name, Distance Carbon Z. Either way you're getting the same product.