It sounds to me like it's a technical problem.
There was a news item today. A competitor's product—not an Apple product—got too hot on an airplane and burned a person who was operating the unit at the time. It sounds like physical characteristics are what we're bumping up against here, and you're working on some technical solutions.
I used to take the blame for people trying to get more horsepower than a machine could provide, and I had to explain horsepower. You can only get so much out of Mother Nature and especially when losses start increasing because of the age of the product.
On the testing of the units, then, over the range of temperature, is there a standard minimum temperature? I know when we used products out of Europe they tested at a slightly higher temperature than what we were testing in Canada and we had to make allowances for lower temperature operations.
When you're operating out of California, is there a global standard for temperature, where you're going from -20° to 40°, or something along those lines?