Honestly, every SODK I've grown has been sativa dominate.l, with the only difference being the finishing times. The fastest (smallest) finished in 75 days in a 2 gal pot. The longest, 118 days in 5 gal pot. They all looked a little indica leaning at first, but once in pre flower you start seeing the sativa influence. They all had a lot of natural branching, and topping them only created more branches, lol. II haven't gotten dense flowers from the SODK yet. Most of mine did foxtail though. Airy/fluffy buds are a sativa trait. Rock hard, dense buds are an indica trait. It seems the bigger the plant, the longer the finish time. You probably have a hundred day'er on your hands.