I run 3 still air bators. It is more work yes. I also hand turn.Can I still hatch eggs with a still air without buying the fan?
But I am 100% hands on. I don't lock down. I count down.
I have excellent hatch rates from aux meters though.
I don't trust factor meters or believe in gradual tilt. I bump turn as what a broody hen would do.
To each there own.