You know what, same thing here. I never had any luck with millis, I keep them alive and color was good but they dont grow at all, maybe a bit of encrusting and then a few months later some RTN. I have now JF Solar flare and a ASD rainbow and the colors is even better from the time I got them, still new in the tank and will see how they do in the future.
I also used to run reefbrites, front and back off the radions in my old 4 tank. I upgraded tank just two months ago and now I'm running five 24' reefbrites front to back of the tank in between of the radions as tank is 30" wide.
In this picture I had 3, but now is 5.