I actually really like the second bit, and have used them and recommended them.
The two mouthpiece with breaks in different places, off center, somewhat minimizes the nutcracker effect and keepts the joints from contacting the roof of the horse's mouth.
Other than that, it's just a slightly different, attention getting snaffle, something I'd switsh to for a final school before a show, and switch back to my usual for the show itself.
The first one? I've got no idea.