I go mostly by smell of the Terpenes vs structure and on these phenos id say the most Congo smelling is the columnar phenotype.
Indeed...
I asked because the nug in the picture above was the closest I've found to what I imagine the Congo#3 smells like. I've flowered out 20 or so Deep Chunks, so I think I've got an idea of its Terpene profile.
I'm looking forward to your thoughts on the plants after you sample them.