Clearly I am gonna have to test ride one and decide on the vibration issue for myself. I have a 950 that I have put 13,000 miles on and ridden it on all sorts of terrain. The 640 would be a little bit of a compromise on the highway but I try to avoid the highway whenever possible.
My intuition nearly makes up for my lack of good judgement.
Just installed my new trolling motor
Husaberg tank for sale: HERE