Anyways, if you have one, Atmos?
Well, it's your lucky day, as I happen to have an Atmos!
The screws for Atmos are hidden under the feet and they were the larger kind so I had to use my flathead to get them out.
As opposed to Dual Elfin and Moskeeto, Atmos's split is horizontal around its middle, meaning it would be possible to give it a dual-attribute status.
Now, believe it or not, but those huge wings in the middle have NO latches attached to the magnet on them at all! The only parts of Atmos that have a latch are the head and tail. However, the wings do have a latch that attach them to the head when it's closed AND to the tail feathers which then connect to the tail, meaning there is shared work keeping the wings down.
Also unlike Dual Elfin, the latching device uses a compression spring which normally holds the magnet up, but causes it to be pulled down upon hitting a metal surface. The latches for the head an tail are also different. The head has a hook latch that latches onto the head while the tail has a stronger push latch where the latch is shoved into position by a solid piece which is only undone when the magnet is activated.-
Now the tail feathers are only held in by Atmos being fully assembled and so can pop out on their own if you're not careful. However, this does give us a closer look at the rotary spring than we've seen so far.
As we can see, part of the rotary spring fits into a notch on the feather while another latches into the main body. If the feather is pushed inwards, the spring is wound up and tightened, meaning it is primes to pop open if the tail latch is undone.