I have the same tires on my 06 950S.
I am finishing up a 1 month, 2,000 mile plus ride in Laos riding the Ho Chi Minh Trail. Plenty of hard pack, sand, bull dust, rocks and mud with a few asphalt stretches of 100k or so in between. Ran the front at 18psi and rear at 15 psi. All I can say is great tires and wish I had them before I dented the rims from running those soft walled TKC 80s.
Will be finishing off the trip with about 1,000k of tarmac so will see how they look after that but the look great now. Wear excellent and no chuncking. A very very happy customer.