Not sure where you read that but last season I had 5 first time mom's go. Of the 5 the largest clutch was 9 smallest was 5. The rest were one at 6 and two at 7. I could see a smaller snake giving less eggs like if you breed her at 2 and 1200g. But at 3 and 1500g (which is where I shoot for) they give decent sized clutches