Thin animals shouldn’t be bred and will not produce follicles. Adequate fat storage is key to healthy production. Fact of the matter is, when you keep thousands of these snakes over the course of decades you see and learn a lot of important cues. I agree not every female should be bred season after season. As I’ve stated many times, there is no one size fits all approach as much as some would like to believe. Breeders are getting accused of not taking care of there animals when for many, it’s their only source of income and they must make sure animals are healthy. The biggest and best breeders everyone looks up to are doing these exact things everyone despises…because they know their animals. Otherwise they wouldn’t be as successful as they are. Do what works for you and your animals and please stop hating on people because they don’t take your “standards”. It is all subjective.
As far as slugs go, it’s more often caused by excessive heat in males before and during breeding, or females kept too hot during and after ovulation. Just my experience.