I feed my boys all once a week and let them grow as they need. I have seen boys get really big and I don't mean fat and do just fine. My Sable is well over 1000g and is quite the stud. Don't overfeed and just let them grow I say. Like with people they are different sizes I wouldn't worry. Like with the femmes I saw a 5000g femme and saw 2000g femme.