I built one. It will usually keep me cool to altitude, and back down on a round trip cross country. The wife has an ice recipe, it saves money. I can have her send it to you.
Installed the ANR in a 15 year old set of Softcoms. Added gel earseals. Works better for me than the wife's Bose. I did install a power port in the panel but still have the battery pack for backup
I am sure he is a pilot, the article mentioned being dressed in typical pilot gear. You think the trooper's hat combat boots jock strap and pushup bra would have garnered a little more attention. But maybe not everyone dresses like I do to fly.
I will see if I can find the reference, but I read that during some of the engine certifications oil capacity was calculated as follows:
Oil capacity should allow for 1 qt./hr. consumption for available fuel on board and still have 2X the minimum quantity for safe engine operation...