I am running 20x10x10 9 paddle skat-trak haulers on my DS650. Just glancing at the paddles, it looks like they are aligned within certain limits. I am getting a lot of vibration when taking off at an angle from a stop. Also, when I temporarily ride over a hard packed terrain, there is a lot of vibration. My metal screen exhaust baffle came loose probably due to this vibration. I rode a guys DS650 that had 20x11x9 v-paddle and his had no vibration and seemed to hook up better for some reason. He was running those funny bald front tires with the solid line down the middle. those work sweet.

 

try letting some air outta the tire.