I'm about 99% sure that now you are auto placed into Slifer red when you join. And when you are in chat you can ask for someone to test you to get reassigned (I just snaked my way into Ra yellow) But if someone named Tenharan offers to test you decline her XD.
EDIT: On a seperate note besure to check out our forum Lottery of the forbidden and participate. Just go onto page, scroll down to where you would comment. Hit preview, and there should be a little are that says games. Click Lottery of the forbid and roll 5. Then post and it should auto roll for you. The prize is 500Dp to buy stuffs