ADTR... funny you should ask that. It is, according to Oaksterdam, the same INDICA dominant strain Sour Grapes (Chemdog x Sour Diesel x Purple Elephant) from the same mother... I was definitely asking my friend the same question though. As far as I can tell it has grown the exact same as all of the others, and I check them exstinsively, daily. They had the same colors, growth time, root size, everything... it just went crazy like 2 weeks before flowering. It is the one directly under the light though, so it got to the middle space first, and, therefore, had/has an extra foot of space to produce more branches. Extra branches leads to extra leaves, more light intake, etc... The leaves are definitely wide and shaped the same as the others (Indica leaves are normally wider). So the only conclusion I have for it being a giant, is the amount of extra light it recieves. Sorry if that was a bit wordy for an answer, I may have taken pretty strong medicine first