Lulu distribution -- Just don't get it
Again, in December, as an experiment, I decided to publish a different size (A5 at lulu), exact same book, same cover, same formatting, same binding (perfectbound), at lulu after having done so at Createspace (6x9).
Not a single copy sold this month or last at CS.
I just checked Amazon for the fun of it, truly did not expect to have made a sale of this book yet. Well, I sold one.
I don't get it. Why are lulu books selling and CS not?
I would love to understand. Any insight, Information? Anyone who knows anything.