Board Thread:News and Announcements/@comment-24577221-20150713175010/@comment-26434937-20150720135731

It seems that for every Rare Single Element there are two letters for the code; one in the teaser and one in the actual announcement. If this happens with the Rare Toe Jammer then this is most likely what they'll be doing with the Tweedle and Noggin, which would mean there would be a total of 10 letters in the secret code.