For nonstable stars, the waves of electric and magnetic fields are not spread out evenly. The more asymmetrical the waves are, the faster they would travel across the core, and thus, the larger the size of the induced particles. (Note, highly unstable stars are observed to have higher amounts of larger atomic nuclei.) If the waves are large, they can ejected huge amounts of material at the poles of the star. If the core object has multiple major waves, then the waves can interact and eject material in patterns. The patterns can take the form of: jets; spheres, parts of spheres such as cups, cones, rings, disks, and other possible geometrical objects.
Thus, nonstable stars: eject larger balls-of-light, in non-spherical patterns, at higher energies.
Temporary Stability
Often, the ejected balls-of-light are ejected with enough energy that they are relatively stable -- that is, until they slow down!
Implication for nonstable stars