Not a performance vehicle owner then Dan?
LOL Derek.

Yes. I think that most performance vehicle people such as in race cars have predeveloped shortcuts for sparkplug settings. But from experience. And an automobile can be be much more finely tuned than a field installed remote refrigeration system can.

The drivers I watch throw away the spark plugs, for example. They have a self-contained system that they understand.

But I hearken to the fact that I can drive a car off the lot and it performs perfectly for the duty it is designed for.

I stand by factory settings as the last things to change. I stand behind the theory that there is an order of seeking and changing adjustments.

But this argument is meaningless to somebody who orders something off the shelf with an idea to change its behavior. The buyer becomes the designer, for example.

5 designers, even if flawed, do not need 500 designers in charge of their product in the field.

I love your difficult questions, Derek. I hope I address them to some degree.