I am usually the first one to get off the bike and walk up hills. But in my case, my red cell count and virtually every other lab test related to oxygen carrying capacity says I am way below normal. So I have an excuse for being a low wattage rider.

Going to the Sun Road, nearly a constant 6 percent grade, that hill I could pedal all the way up. I usually walk at 9 or more percent when carrying a touring load.