I'm younger then 8, I will go fly when it's all the way down around 40. That's almost the truth anyway. I like to fly on a dry lake bed that is in a valley. When I'm at the top of the pass and my temp gauge says 40 it's at least 30 down on the LB. My hands and feet were frost bitten when I was about 18 so when it's in the 30s I tend to lose the feeling in my fingers, that's not a good thing for an RC pilot. I don't like gloves and I can wait until the weather warms up so no big deal. I had never learned about the lighter fluid trick until last year when it was down into the 20s here and my friend in NY told me about it. My engines start a lot better now in the winter. Winter in Las Vegas, we had snow flakes falling yesterday. We love seeing the tourists come to town in there shorts thinking it's always 100 in the desert.