last time when i had these together, i bought the 910. This time around the favor goes to S4RS, maybe other people's Hos are always better :yo: no, but all kidding aside, the duc is a much more comfortable ride, full of funny interesting noises and clatters, much easier to ride faster and it actually look very sexy with its suppose to be ugly bits of mechanical parts. The girl even enjoy it much more than the 910, because of the duc comfy seat option. The duc is less nimble and less fun mainly because of its low bars, but at speeds above 90mph im actually less affected by wind blasting than the 910. Im really confused, i actually like to have both or want this more than the F4 1k, but luckily i can sometimes ride this one, so i dont have to have 2 naked bikes, or i can sell the prettiest bike in the world to get it with no money loss??!!!! I dont think so ,........... U see, im confused.