Took a run on the gravel road. At 40 mph, seat of the pants feel wan't much different than the d606's. I didn't drive too aggressively on either set. I did notice the front 705 tries to wash out on mulch with a thin layer of pine straw, while the 606 held firmly. Nothing will be as good offroad as a knobby, but these 705's seem like they don't mess around either. Honestly surprised. If they bite this well on gravel I'm sure they would be great on anything but mud. I predict that in mud they would fill up and become slick like most of the all terrain tires I had on my truck. I don't plan on doing any mud runs anyway.
They definitely work for what I want them for. I'm impressed!