I paired two 17 month old females last season, both sisters and they dropped eggs at almost exactly 24 months old.
6 eggs from one, 5 from the other, all healthy large viable eggs that resulted on 1.4 yellowbelly 100% het clown and 1.5 100% het clowns.
They were 1350 and 1650 grams at the beginning of pairing and both ate well throughout the breeding until they glowed.