Columbian strains tend to well.... suck. I saw some guy columbian grow a "Rare seed" that was the best the country had to offer and it sucked. He had several others and they sucked. My pop knows weed, traveled the world in the 70's smoked all over the world. Said out of any landrace Southamerican sucks the most. I in my years have never see anything that would compell me towards growing anything Columbian. With the choices we have now from selective breeding some strain should disappear from growing and be used for breeding only.