I've only grown two versions so far, female seeds and the new brothers grimm fems. The FS version I've grown several times and is always one of the largest yeilders in my garden. It has thin leaves and a sweet pineapple smell, sometimes with cheesy undertones. The buds are not rock solid but are large and tend to cover the plant from top to bottom. It's very branchy and a single topping is enough to create 4-6 tops. Can be done as early as 50 days but I've taken them to 63. Earlier harvesting brings the typical euphoric sativa high but letting them go longer will introduce some sedating qualities to the buds. The BG I've only grown one of so far and that one was.... Not what I expected. Granted one is a small sample size but the leaves we're larger and thicker, the buds smaller but more solid, and the smell was not nearly as sweet. It also took longer to finish. If the C'99 from fs is as most say similar to the original than I definitely question BG's newest offerings and whether they are from original stock.