Sometimes it takes a while to stimulate drinking. I do a 10 minute rain in the am and 15 min later in day.
If you are trying to minimize water, try staggering the 5 minute spray. Seems to work for me when I have short cycles.
Set it to run for a few minutes, stop, and a few minutes later they go back on. I also have it so it sprays just enough on top screen there is water drops most of the day.