My unit has the firmware bug that stonemonkey mentioned, so the green LED is not an accurate indicator of when the unit is up to proper temperature. It really should be ignored. When my firmware gets updated, this will no longer be the case.Stu: Nice graph. It got heated up (green) to noon temp in 30 minutes? Isn't that too much? I don't get it, I thought it should be ~10 minutes. 140°F (60°C) seems very warm, but holdable.
My noon may well be hotter than others' units as VXC has been tweaking the algorithm that determines temperature at noon. I have a feeling that it is. 140 is too hot to manipulate over a piece of glass to be sure, but I prefer to use my HT anyway.