Growlers can fill the bill for a loud pointy noise crowd pleaser, the electronic stuff is irrelevant for the demo mission, at that point it's just another hornet.

But it's a very expensive hornet, maybe better to use clapped out C models for that?

And yeah not sure why you need more than one doing the demo, air show formation flying is getting into Blue Angel/T-Bird business, and there's a reason that mission is a full-time job. Sure, send a two ship to the air show, but one of them should just be a static display.

Yes amazing luck that everybody was able to jump out. So many ways that could have gone wrong.

Maybe worth noting that the DoD has done the analysis on the cost of participating in public demo activities... it does actually provide an ROI because it turns out it's an amazing motivation for boys and young men to get them interested in the military. It would actually cost more to deploy enough strip-mall recruiters to do the same job. Just need to not crash of course.