Except me, I call her Kara -- PG (and all its derived forms) doesn't do it for me. Heh, and we can't call her PW if and when that time comes, unfortunate connotations (is that what you meant by completely lateral?). She's no more "Karen" than Bruce is "Matches" or Selina is "Irena". I'm thinking she should be KL for short, as in Kara, the last daughter of the House of L.