I don't abuse my boat. If I lived and hunted where there were rock shoals and rocky beaches, I could see where I might have an impact. Here in AK where I hunt the highest potential for keel damage while in use is from going over a semi floating log across a slough. The second highest potential for damage is poor trailer loading allowing the boat to move when going down a dirt road. 
  
The times I have had an issue (trailer damage) I fixed it before it could become a problem. The fix was some sanding to remove paint and smooth the wood, then a fill of thickened epoxy, sand it, and then paint.  
  
For most epoxy over wood boats to get the wood wet enough to have an issue you need to ingore the issue for a few months. You can't do that. You can fix most minor dings and dents in 24 hours as long as its not too cold to allow the 3M5200 or epoxy to cure.  
  
Really though, you do not treat a wooden boat the same as you would a metal one.