If we're looking for neural-grip pressing, I think I've pretty much settled on "just" using dumbbells. The Swiss bar still has me moving my head out of the way for fear of catching myself in the jaw. Could be a technique issue on my end or could just be in my head. But the way I figure, there's not a ton of benefits that Swiss bar/trap bar pressing can offer that dumbbells can't.
The most obvious is the chance to use a heavier load, but like you guys have mentioned, the stability requirements increase dramatically with a bar, relative to "heavy" dumbbells. So, yeah, overall I'd probably just go for dumbbells.
He's a big fan of the Dead-Squat bar, I believe moreso than a basic trap bar.
That's a weirdly interesting half-trap bar, but it's still a funky/ugly "clean" and he had to duck his head down to get it out of the way. Here's a guy curling/continental cleaning a trap bar in a super-awkward way. He still moves some big weight, but also spent a ton of energy to get the bar into position:
If you don't have adjustable squat stands (not a rack, but individual stands) I don't see any easier way to get a basic trap bar into position. That's a big reason the Dead-Squat bar was designed the way it was, meant to fit inside a rack just like a straight bar. It also has handles slightly angled, not totally parallel, so you're actually in slight pronation (or supination), almost like an EZ curl bar, which could be further easier on the joints.