Anyone have any experience / Data on farming Tranquility card?

Think I've done about 40+ Dry peninsula runs and and well came out dry =/ I've been trying to get a set for a close friend of mine. I've done like lets say probably 12+ Residence runs and gotten 3 of the 6L cards and thought that's suppose to be more rare then a volt card.

Thanks ~

Got one on my firs dry peninsula after patch, rng bro.

40+ is not fun :_.