The big takeaway was just do what other students are doing (this was also about patches on the right shoulder), so if no one before you is wearing the leather jacket, you would probably get the impression that you shouldn't, even if no one cares and its not stated anymore,
Nooooooo! That's what causes all the (false) issues. The uniform instruction (and local instructions) are what governs you, not random O-1s who don't know what they don't know (Marines included). Wear the damn thing if it's cold. Don't wear it during the summer. Don't wear it out of uniform (at least around town...if you're back home, who cares). But it's yours to wear, just like brown shoes.
You guys are making this way harder than it has to be.
Those guys are non-hackers usually. Rolling of eyes is authorized.
I don't know what a "skipper of API" is, but NASC CO is a post-command CO, just like you, who has also picked up Major Command. I wouldn't call it a non-hacker. Just a different path on the way to O-6 retirement.
I get the intent of your post, but keep in mind the the younger ones don't necessarily understand the difference between an OIC (if that's even what it is) and a CO.