I get steering vibration when I have our 2004 Mobius LSV heavily weighted and pulling up a wakeboarder. However, I find it mostly occurs when the steering is not straight ahead - if I have the steering partially left or right when I hit the throttle, there is much more vibration than when I happen to get it straight ahead at throttle up. When the boat is not heavily weighted, it doesn't happen at all. I am in the habit of guessing that the steering is straight and when I hit the throttle, let the steering wheel slide on its own to a straight forward direction. This has no impact on the wakeboarder because the boat wants to go straight and straightens out very quickly. By heavily weighted I mean the center bag in the ski locker full and approx. 500lbs in each of two bags next to the engine compartment (i.e. 1,000 lbs in the rear), plus 2-5 people on the boat.