Right alee,
Before I began cooling I'd get a clutch of fertile, and 5 non fertile, I'd have 1 girl lag and not do anything, and then start laying slugs. I started cooling to put everyone on the same schedule. Laying is already stressful but to lay slugs was just a waste
Of energy for them. Since I've begun cooling not only do I have on time babies, but I only get let's say 1 clutch of slugs per female and that's the end of the season. Cooling also gives them a start and stop period. I want to make sure my girls don't get too tired. I guess it all depends where you are, your setup, and what your breeding plans are. I'm sure everyone does something different and alot of things work.