how do you know

i have a feeling that almost all people that are told what the strain is when getting it from another person it is not that strain. i think the only way to get what you want is through a seed shop. ya know?

or a local reputable club or breeder. or honest friends. or clones from a friend who bought seeds...........

even so though strains dont really exist...when you are buying seeds it is more like a seed from the same group or family. growing characteristics are never exactly the same unless you breed the badboys yourself