Jim you have many boats to your credit and I'm sure you have taken every precaution, clearly I'm not saying it can't be done. What I want to stress is that any time the wood is trapped between the blade (saw or router) and the fence, it has the potential for bad things to happen. I just don't want someone with real beginner skills to be of the mindset that he saw it set up that way and everything is safe. If the feather boards are not set up correctly or omitted all together (don't want to take the time to build them, or it's just one board I don't want to take the time to set everything up etc) they could be in trouble. You are doing an unsafe procedure safely and with full knowledge of the dangers, but others might know. A strip built canoe was the first thing I built, years after high school shop. The things I did then because I just didn't know, scares me now when I think about it. I've been a boatbuilder professionally now for thirty years and had some close calls so I know how quick bad things can happen. That's all I'm trying to say.
Carry on, I enjoy and look forward to all your posts.
Jim