OK, here it is, a serious question. Yes, from me. Heat never seems to bother my engines, even on the days I think I'm camping out in front of the gates of hell. Do you guys think it more the humidity??Flying out on a lake bed when it's getting close to 120 and I don't change the tune at all but our average humidity this time of year is only about 6%.It just makes me wonder. High today was only 105 {normal} and 4% humidity.