I experimented with the darkside, as a winter experiment, successful beyond my wildest imagination, on my V-strom 1000, a General Altimax Arctic in back, and a studded Metzler Karoo up front,
First I tried studded Karoos front & rear, the front hooked up good, but too much hp & engine braking for rear, I got the brainey idea a heavier tire would buffer the hp & engine braking issues, and that it does, winter car rubber also sticks to cold pavement better, real sipes and tread designed to handle slush, snow & ice
other 3 seasons, not so much, certainly does last a long time, 4 front tires to 1 darkside rear, but I'm not in it to save $$, I have my winter car tire mounted on a spare rear wheel
If I were to take a long trip, Alaska, for instance, I would probably go darkside to save a tire change on the trip