Thanks for the info, I was gifted some bagseed that I was told came out of weed that was grown in Eswatini for export and the bagseed had two pretty distinctive types in it, a longer flowering one and a fast one with tight, dense little buds. I like the fast one because it grows well outdoors and finishes at 45.5º even though it flowers late and I was trying to figure out what it might be related to, so I looked at a bunch of photos and descriptions of varieties from that region and found a little info about Kwazulu and some photos of Seeds of Africa Kwazulu-Natal that that look like the fast flowering one I like. No other landraces from that region I saw looked much like the fast one I like, but a lot of pictures of Durban Poison look similar. Your description matches up with my bagseed plant too. Do you remember if your Kwazulu looked anything like this:
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Some similarities there, but this is from memory about five years ago. They were grown before i got comfortable with taking pictures, being a criminal for the first twentyfive years of growing was hard to overcome.
Color looks spot on but buds i grew were less leafy, more roundish and dense. I do remember they reminded me of pre98 bubba that i had grown the year before.
Branching below top was sparse with lowest branches never getting longer than about six inches.
It was not horrible weed but the hard crash was a deal breaker for me.
Yours look more appropriate in leafiness and density for something sativa/sativa leaning, nicely grown.
Effects are what drive my search, hope you get what you are looking for in these.