@Starbase101 agreed - this is 100% what the vast majority of people in these forums are looking for.

@Wayne-TP So...under what circumstances does the 4-way compatibility for the S515 that is advertised actually work?

@Wayne-TP I see that the S515 seems to be able to accommodate 4-way setups (3 switches controlling the same fixture). The S515D Kit seems to have two dimmer compatible switches (one main, one...