IMO size does not make a whole lot of differece when you are only going to be using him for 1 female. I think age is more important with males. How big and how old is this snake now? Feeding your snake a small meal every 5 days will not make him unhealthy. Is it possible for you to buy a late 06 male? Honestly, If it were me and he had good weight and was producing plugs I would probably give it a try. Oh, and feeding a small meal every 5 days is not "powerfeeding". Many people feed hatchlings every 5 days.