I dont know what strains your grow but the strains I grow are pretty damned stable. I dont know what breeders/seed companies are telling you they are all supposed to be different. My strains all have remarkably the same traits. There are variances, but not so much that its not recognizable. And I guess I am one of those "fortunate" ones who is flooded with mexican sativa. I get sick of it personally.
So, is something like the pakistan indica landrace a pure pakistan indica landrace or not? I want to grow 100% indica for the medical properties and have been considering this one for a bit.
Was looking for clear definitions and distinction between landrace and heirloom the other day and came across this glossary. Seems it would be useful to some of you here as well