We have been tweeking and fine tuning our homemade incubator and I think we just might have it! at first we were having issues with too much of a temp swing with the wiggler, but we put a dimmer switch on the constant bulb and that seems to do the trick! we have a more constant temp now, with less fluctuations and all within the ok range of 99.5*-101.5*. I am taking note of the changes today, throughout the day and how much water needs to be added and all that. so tomorrow I think we will be ready to set some eggs!!!