Two of 4 Hindu Kush (feminized) seedlings germinated presented 2 stems from a single seed. I have read speculation that this is more likely with feminized seeds, but whatever, I'm happy to have them. I resisted advice from a gardening expert to remove one twin (I even hate thinning healthy pea plants) falling back on the "let it grow" attitude still displayed by my increasing sparse long hair) and was pleased with the result. Both double hearers are lush and flourishing in their extravagant kushy way, obviously outstripping their single stem sisters planted and tended similarly outdoors. Although I appreciate the commercial seed growers desire for uniformity, it does make me wonder why double heading does not become a goal as a desirable selling point, at least for bushy indica strains like mine. A few OG Kush ladies of the single stem variety grown and tended similarly are doing well but none of the single headers are equally promising as the twins. Two heads or three, at least if it's indica, then I preach: "LET IT GROW!" In the Fall I'll offer a dry yield comparison for you number crunchers.