I hit something a couple weeks ago when getting up a rider. Felt like a small piece of wood (river). We could not drive over 10 mph on the way back to the dock without extreme vibrations. The prop was noticably damaged. I took it to the prop shop and they re-machined it out. First time out, I was still nervous and when gunning it to pull up a rider, there is a vibration that was never there before. About 1 second of a vibration which includes the steering wheel shaking a bit. Once that is through, everything is fine and there is nothing wrong.
Is this something I should be worried about? My uneducated guess is that something else is just barely off (shaft, etc) and under stress it shakes. What do you guys think?