All my super giants breeders came from Ron Tremper directly. I have some of the largest males he ever sold as the foundation for my groups. I only sell Super Giants from proven pairs that have given me consistently large geckos. If I notice runts or slow growth I do not sell them here. I also don't overfeed, so for optimal size, super giants need to be grown out for 2 years. Breeding at 1 year is fine, but will usually stunt their growth to some degree.