Hi, I am designing a RA2 Select system for lighting and shades. I will be using RRD-PROs and MA-PROs throughout the house along with RD-RDs and MA-Rs for 3- or 4-way switches. However, I have one light string outside that is set up as a 4-way with two switches inside (RRD + RD) and one switch outside. The outdoor switch is under roof but open to the elements (Florida). Is there any mechanical switch (even non-Lutron) I can use that would work with the RRD + RD? Or if I dropped the RD remote and just had an RRD with a Pico, is there an outdoor switch that would work? Thanks!