FBSS rarity?

[fischsemmel]

Post is getting old, but figured I'd come back and edit it incase anyone using search function digs this up looking for fbss rarity or drop stats or whatever.

I camped frenzy in 2 sessions. First one was 18 hours, killed 108 pops, 7 of which were frenzied ghouls, but just got 7 rings as loot. Second session lasted about 3 hours, killed 17 pops, 4 of which were frenzied ghouls, and the last one of those coughed up the sash for me.