Ed,
Sorry, I wasn't trying to scare anyone. I was talking about liability insurance for any power sharpening system as compared to a manual system. I said in my first post, the paper wheels work great... and they do... no doubt about it. Just that sharp edges and high RPMs can be a potentially dangerous combination.
The referance to woodworking tools was simply to point out that using the wheels also has potential for injury and if someone isn't comfortable with the set up, be it a table saw, router, the paper wheels, or whatever, then it's best to error on the safe side.
I've been using these wheels for years and even I've had a couple broadheads yanked out of my hand and go flying. Again, I'm not suggesting that people shouldn't use them, just that we have to be very careful when using them, that's all.
Ron