You were running radions right? Was lookin into an ati fixture as well. Let me know how you and your coral like it! Did you get the controllable t5's with LEDs?
I have two Maxspect Razor led fixtures before switch back to T5. So far, I like my new t5 dimmable ATI. I am at the 50 hrs burning as recommended by ATI. This thing is so bright when it first firred up that all of the inhabitants either hiding in the shade or closed up. Things are so slowly acclimating and I noticed that my nem already opened up today and it looks bigger in size than under the led...no bs at all here. It is on day number two now and will let it run at full intensity until this weekend, before I change to custom program. I will also switch out one actinic for one more blue plus.
It is too early to see any diff for the sps. I would expect my bonsai garf, gummi bear, blue berry acro, strawberry shortcake, and other acro to get their colors back no doubts with this T5. I have the dim T5 not the ATI hybrid one. You cannot go wrong with the ATI T5 at all. The some of best looking sps tanks that I have seems are the one with the ATI light fixtures.