I never used electronic feeders, couldn't get any mature bucks to use them.
There is not a book with a absolute set of rules of what will work, what won't, when, on what. Deer don't read books to know what they should do or should not do. The deer will tell you very quickly what they will tolerate or not and you will see differences based upon the big list of variables. I do now this for 100% fact, I could control the amount of food and when there was food available with an electronic feeder. There is no way to do that with dumped bait. Deer learn pretty quickly that if they show up after dark there are no goodies left for them. Deer that visit at night and get what they want have no incentive to go during daylight.
Just my personal experience.