I've used the UHD in a K60 for the Frankfurt to UB run which was everything from 140kph Autobahn to 15kph path, in lots of rain and tremendous heat in the Uzbek deserts (Kyzl Kum, etc).
Haven't changed that tire but will look for the "dust" allegedly from the inner tube when I do.
But I won't use a UHD again. REALLY made balancing the wheel difficult. That tube weighs more than my front tire (Karoo2) !
I run a Tubliss in the front and the lack of heat from ANY tube contributed to that tire lasting 50% longer than previous experience.
2011 Husky TE 630 2011 Husaberg FE 570S
2006 KTM 950 'S' ADV 2005 Suzuki DRZ 400 SM
"The perfect is the enemy of the good." 4 bikes in 3 countries.
Orange, it's the new black Tour.