I have a brinsea mini advance and om incubating what are hopfully pure mottled houdans i had other roos in the coop but the houdan was dominant so im pretty sure they will be pure but if not its no problem
I have a Mini Advanced too - my first "Test Try" in it. I like it because it holds a stable temp in the winter months. I had to run a heater in my room for the 1588 HB because it wouldn't hold a stable temp!