I figured back in my Pops day he didn't have all the go to nutrients store's we have today, as didn't alot of growers. This is more than likely why they had to experiment with different methods, such as the nail, milk, shit like that. Lol
Back in the day my friends grew the hydro and passed it off as Kona Gold -- it worked and was sold by the gram for $10. Funny, I also remembered tasting Purple Kush back then, it just wasn't called PK? A lot has changed because of the "hot house" indoor growing craze. I still believe in out-of-doors, as long as your climate is right and you pamper the soil. Yummy and natural, no fake lime-like look and weird perfume taste. In sum, today's strains are all pretty much good, no matter. Hence, years ago it was just strains like Jamaican, Acapulco Gold, Columbian Gold and yes Afghan and remember Mexiomacon (sp). Most all the weed had seeds, but laid you out on the floor after a few bowls. Those were the days. But today has finally caught up, with pricing as well. I used to give away seeds, now they charge around $10 per seed for decent genetics -- what do you know?