Cifer reported to me that no Papulatus Certificates dropped when he and a friend killed Pap. As far as I'm aware, they're suppose to drop at a 100% rate - is that correct?
I think that is accurate, or at least at a high rate since it is needed for several quests. I killed a Pianus earlier on, and it dropped not 1 but 3 certs. So definitely Pap should be not too different from that.
Already reported with more information here: http://royals.ms/forum/showthread.php?t=6714 Whooops, sorry! ~ Kat