I think they are a good thing, but not necessarily going to mean a more effective labor. I always had strong BH contractions starting before 20 wks- with my VBAC baby, I had a ton, and often were very regular. I did go into labor early-...
I really don't see why you aren't a good candidate. It sounds to me like you are a wonderful candidate, and had too many interventions the first time around.
Don't let this OB shake your confidence. My first VBAC attempt failed because...
What about the Gerda Muller Seasons boardbooks? They are only picture books-but perfect for toddlers-my DS who is 22 months loves them- and just stares at the pictures.