It seems the strains that people had bad experiences with are the bottom of the pile stuff. Once stock starts to dwindle I stop buying big amounts and grab the odd sample to test the water. It shouldn't be like this but that's how it is. They said the Bali and red sumatra is old stock hence permanent sale. I just go for Sunda and Vietnam mostly. I like those a lot. I also buy from TT and anywhere I can find. Keep rotating strains and it seems to keep working for me.