A lot of large breeders will push their young females very early, typically power feed them to short obesity, they will result in small clutches with a lot of slugs. Also, not cooling females will produce slugs, but people seem to still do it anyway. Start breeding condros and breeders will understand the importance of age and cooling when it comes to healthy breeding. That's my personal opinion, but you see some of the biggest breeders in the world not, so maybe I'm wrong.