Understand this, egg laying problems are never caused by the snake laying the wrong sized eggs.
Nature knows what its doing, small snakes will lay eggs they can pass. Also species such as getula, can lay small eggs for their size or large eggs for their size. Often is a smaller clutch of larger eggs or a larger clutch of smaller eggs.
I have had many many females lay one, then the other in the same year.
If I were you, I would ask about nesting options instead of egg or clutch size. As poor nesting is without question the major cause of egg binding and reproductive failure. Cheers