It's funny you should say that but I have a bunch of these VRMX1 dimmers, as well as the older VRI06 ones, and couldn't get instant status to work with any of the supplied drivers. Until, today i set them all back to the "Leviton DZ6HD Z-Wave DImmer" driver, and instant status works.
It's enough to make me think I'm going crazy - I could have sworn I tried that driver when first setting up my C7 (migrating from vera)...
Don't have instant status working on any of the Leviton Vizia RF switches yet though...
