Hi! I know of the confusion and you do not need to worry! I have already asked and your second super rare would not be a duplicate. What this means is, players who obtained Madara first, will get Kurama next. While those who got Kurama first, will get Madara second. What other players pull will not affect your own, so you need not worry.

I hope I could shed some light in this confusion. Please let me know if you have any questions, you c*so reach me through private message.

~Jib