I didn't do anything differently with this guy than with the others. Eventhough I feed Mazuri daily 50/50 with weeds, I think that there is definately a genetic factor at play here. He's 3 1/2# heavier than the next largest. His size was the major factor in deciding to keep this guy as my male. I can only imagine how big he will be in a couple years. Huge adult animals were almost always huge babies and huge adolescents.