How does the Smart Shuffle work?

The shuffle function works like this:

If a user posts 10 posts which have a different outbound URLs like this:

AAABBBCCCC

Then the shuffler with mix them like this

ABCABCABCC

This spreads the posts out evenly.

But if you have many of the same posts like this:

AAABBBCCCCCCCCCCCCCCCCCCCC

Then after shuffling, you posts will look like this:

ABCABCCCCCCCCCCCCCCCCCCCCC

The shuffler mixes them as best it can but if it has too many of the same post, then those go to the end.

I suggest creating a few more posts with other outbound URLs if you would like more variety in between your existing posts.