Oh yeah, that's when we can see all the magnets under the hood. Most people have never seen them, though, which is a good thing. That was such a great idea at the time, but that simply cannot be applied to modern weight mapped figures, like Dawn or LaFemme. I don't know if it was a coincidence, but legacy rigging used in the V4 era used spheres to dynamically generate weight maps under the hood, which coincides with the way Poser magnets work.
This is why V4 or older figures can work in both Poser and DS, because their weight maps are generated dynamically. They are not hard-coded like it is with modern figures. In the same way, magnets can create dynamic morphs on figures, and they can be saved to the library as props, and later applied to the same or any other figure. The only caveats are Poser's inability of knowing which groups are affected by a magnet, or to include weights when copy and pasting magnets. Those things were never fixed.
This is why V4 or older figures can work in both Poser and DS, because their weight maps are generated dynamically. They are not hard-coded like it is with modern figures. In the same way, magnets can create dynamic morphs on figures, and they can be saved to the library as props, and later applied to the same or any other figure. The only caveats are Poser's inability of knowing which groups are affected by a magnet, or to include weights when copy and pasting magnets. Those things were never fixed.