This is the first time I've hatched eggs myself in several years and the first time using one of those digital gauges. Here are my questions: 1) With the cheap LG thermometers, you are supposed to have them level with the tops of the eggs. Does the hygrometer need to be like that, too, or does it matter? Will it give the same reading no matter where it is placed? 2) I've read lots and LOTS of posts on here about the level the humidity should be kept prior to day 18 but can't remember what is the best level. Is there a range in which the humidity should be kept days 1 - 17? Ands days 18 - 21, it should be about 65 - 70%? I'm starting the eggs Wednesday and would like everything to be as perfect as possible when they go in so thank you for your help!