My daughter's class wants to incubate eggs, but after my disastrous experience with my homemade incubator, ( Day 21, ulcer, and Day 22? ), I think I might buy one. Two Restrictions: 1. Custodian says no elements like in the Little Giant 2. Teacher can't turn eggs more than twice a day Is the Brower top hatch any good? Any other good choices? Your input would be great!