Dont ask people to post their username here in this thread, I suggest you to create a new thread at the Games and Rounds board for this free spin.
If there will be some people post their username in this thread then your thread will be moved to Games and Rounds board, even worst your thread might be archived.
Just a friendly reminder and suggestion. Dont forget to add full terms about the free spins you are going to give, to avoid confusion or complain later.
Anyway, seems that you have made many improvements in the last few months especially the addition of the 3rd party games as I did not see it when I visited your site months ago.