Well Darwin was growing by leaps and bounds but she hasn't grown ANY in the last 3 months. She must be a rare dwarf sulcata. Haha! She has topped out at 13 inches and 11 pounds. I have done nothing different so I don't understand why she stopped growing???
Mine did the opposite of yours! She is 4 and just now at 5 lbs. But she is growing and growing. Her growth lines are coming in so fast. Tortoises grow at all different rates. Or maybe you do have a dwarf Sulcata in which case you best breed and make a new sub species of dwarf Sully's!!!