Problem is the guy could have been cheated or mistake could happen and got CBD seeds from dinafem... that would explain nice looking buds without high effect.
@Kassiopeija has some info about outsourcing their seed production to 3rd party. I knew they was laundering money and their seed are mostly n/a now but this I did not know. Actually running their seeds right now 2 plants Original Amnesia and need to say that they look completely different to each other.