I get your point CA. What I am saying is that I judge what is safe for myself, and it is usually far stricter than regs.
Let me sharpen another good point.
I ALSO judge what will keep me away from regulatory action - SPECIFICALLY. In other words, just because it’s safe, doesn’t mean it won’t get you busted by some poor slob unfortunate to work in a FSDO where he is judged by creation of documents rather than by keeping us all safe.
Case in point: I recently flew all the way around the Crawford TFR when I could have gone through the extended section. I had a valid plan filed, and was in contact with ATC, but I requested a path a long way out of my way just to avoid the whole matter.
Another: During flight training, I took off solo in the rain. This created panic at the school, and generated a call to my instructor who - knowing me - told them all to relax. He knew I wasn’t up to trouble. I took off because the rain was only over the first 200 feet of runway and the north end of the field. The rest of the field was under blue skies and the lonely rain cloud was moving north. I had two other fields to choose from if it reversed direction, but it was only a mile in diameter. We had a good laugh after that, but the kid instructors still persisted in calling me “Rain Man”. It was legal for me to take off because of excellent visibility (we had a smoke stack visible 6 miles south of the school), yet an overzealous FAA inspector could have had a field day with that.
Third: This one is not aviation, but helps make my point. I got a ticket for going 35 in a 25 that was a school zone. A grandstanding mayor had recently tripled lots of fines to bolster his support while quietly pressuring ticket quotas on to the police to raise money. The cop that gave me the ticket did so by simply waving me over and writing me up. He used no radar gun, and I was not yet in the school zone when he started waving me over. When I left, I went around the block and observed him doing this to 2 more cars. Then I found out he put the wrong day on the ticket. I paid a lawyer to get the ticket dismissed, and later learned about the quotas and bad morale from another officer who apologized and also pointed out that the guy had likely taken the day off by writing a bunch of tickets with the wrong dates. This officers behavior was overboard, but I can understand how the environment had helped him rationalize it.
It’s like buying insurance. You don’t buy the insurance to keep you safe, you buy the insurance to avoid bad consequences. Flying by the reg’s is like buying insurance to me. I don’t believe it keeps me safe, just out of trouble.
THEREFORE - Known Ice would have a value that inadvertant ice would not. Even if inadvertant kept you safe, it wouldn’t keep away the FAA.