I have been purchasing riverstone for about 6 years and I am noticing clumps of black putty from small bits to large bits in one pouch I found 4 grams so realistically I am getting 21 grams in a pouch I am paying 56 dollars a pouch and it seems to be a regular thing and also with the stems aswell just now I pulled a gram size chunk of the black putty I am going to start buying a different brand sick of getting a packet that says 25 grams but has 21 getting ripped of