EcoGlo arrived today and I just finished setting it up and moving the week old chicks to the larger brooder tote. The instructions stated chicks prefer the lowest setting for height. Since they were a week old I went with that. Now looking at them all snuggling next to the outside edge and not going under it I am wondering if I should have set it at the second level which would have looked more open. One did manage to go under it and I am betting it figures out where the heat really is and the rest will follow but for those who have had one of these in practical use what settings have you found to be the best for the age / chicks. How long would you say you used it too? When chicks fully feathered out you removed it? I also have it on shavings... the book said you may have to "build" a nest for quail which made me think its safe for nest like material under the plate.