Short interruption of availability on Nook

Illuminated manuscript, Hours of Catherine of Cleves.
There will be a short interruption of availability of The Soulstone Chronicles on Nook (Barnes and Noble) for the next few weeks. I am transferring the distribution of the series from Lulu to Smashwords starting September.
Something is not right over at Lulu. I had a sales die off on iTunes starting January or February of this year while Lulu managed the distribution. I have a sales pattern and it’s been fairly solid over the past five to six years. A certain percentage of people pick up the freebies and continue purchasing the series. Back in January, that pattern changed for iTunes. I was seeing downloads of freebies, but never any sales. Near the beginning of August, the same thing happened with Nook, except it flatlined entirely, no sign of free downloads or purchases. And that is just not the pattern. Six solid years of a pattern does not disappear in a month without a person raising eyebrows.
So after querying this and getting some info on report dates from Nook to Lulu, I have decided to pull distribution.
I did this for the series with regards to iTunes already. I had to wait a few months for Smashwords to report the sales on iTunes, but it returned. The sales pattern is back. Smashwords wins. It gets distribution of the series from now on.