Thank you for your responses. I am still an alien.

Alice, everything I've found has said it's calcium channel antibodies (VGCC) that are implicated in LEMS, while the potassium channel antibodies (VGKC) are associated with Isaac's, autonomic dysfunction, Limbic Encephalitis, or Morvan's Syndrome, and sometimes MG. I'd give references, but I'm not allowed to post links. Is LEMS associated with both types?

Geode