I will agree with Lija on the point that if your pump ever starts to loose pressure over time then a system that has the max amount of heads might start to fail and drip instead of mist.

Having the extra capacity is not a bad thing.
So I would spend the few extra bucks and have room for expansion later.

Quote Originally Posted by Lija View Post
i don't ever like to run anything on max capacity I'd say get another deluxe this way you will have an ability to get more.... and more.... and some more .....