I'm thinking about getting an incubator. I'd like a larger cabinet size one, for future endeavors. I prefer a minimum of 300 (chicken) eggs capacity. Any recommendations? Also, I've never used an incubator, would you advise me to get a smaller one first, before I buy a much larger one? If so, any suggestions? I have a few hens that live to go broody so, I have no problem adding to my flock, but I'd like some more purebred birds.