I purchased a FI pro series 4200. While is works okay, I was losing too much sleep to temp flucuation. So, I stumbled upon an ad for a Lyons Roll X plus two different size trays and a few other accessories. It's super nice and I got everything for 350 which I feel was a fantastic price. I can't wait to use it and get ride of the other! Anyone have any tips or hints for this particular incubator? I'm hoping that the old one didn't fry the eggs.......I have a variety of marans and some lavender ameraucanas cooking right now. Also, they have another one available still. It's older but works great. 300. In w. Wa state.