That is great news. Ive always loved that drop. I remember clearly my system for finding them before. Run a custom apoc modded boss a whole bunch. Like bunnyking, or end of torms, or ubers in halls...a thousand times. Or, on the other hand, do ten thousand baal runs. Right now the baal runs and rips are our best bet. But, I clearly remember always finding them from a boss of sorts. Save one time, i found one in nm from a common joe mob.