I have a 37 node system with a combination of door locks, thermostats and lamp modules. The door locks and thermostats worked great using a few lamp modules at "repeaters". I just added 15 lamp dimmers and even though they work most of the time there is typically a 30-45 second lag to turn them on and off from my VRCOP. I programmed the system using the Vizia RF installer tool. Does anyone have any suggestions that I can try?