I want to install Caseta 2 button, single pole wireless switches that control two different outside lights. Do I want the PD-5WS-DV Pro that has no neutral wire? The current old switches use two blacks. If it matters, there are some neutrals in both boxes. If no neutral is needed on the switches, fine, but is there some current or future reason why I would want a neutral on them?I see the PD-6ANS and PD-5ANS use neutrals and I don't know the difference between them but are their neutrals used as 3-way travellers? My setups are not 3-way. The plan is to use a four button Pico in a car to control these switches.