Leach St Ives Pottery mystery L dots mark - Janet Leach?

Came across this mark recently on a jug with a decoration that looked a very like Janet Leach's, but with a weak handle, and also bearing the St Ives mark. I read recently that Bernard Leach liked to christen a new kiln with a salt firing. I also recall reading that Janet Leach was using a cut-off version of Bernard Leach's mark at one point, I think when she first knew him, until he got fed up and made her make her own one. The fact that both pots are a little crudely made could indicate they were early ones of Janet's