Agreed. The only reason I even became aware of it was because a member is also in my quail group and she wouldn't stop pushing the idea, so I looked into it.
I have to say, the more I go through the posts in that stacker group it is all problems. Curled toes and major humidity issues. Late term deaths... It all seems so obvious (to me at least) that it's because of the excess of eggs in a small space and lack of turning. The people who are using it...
I'm a member of a couple incubation groups on FB and there's a group called "Stacker Hatchers" they advocate no turning at all and place eggs from any number of types of fowl all together. I've always been under the impression that turning is vital for days 3-14 for normal development. Quail...