You won't be unhappy with T5. I am currently running an 8 build with some actinic LED strips.
That said, I would love to see what my tank looks like with 2x 24" reefbreeder v2 (30x30 cube).
Annnnnnnnd now I know what the photon looks like over my tank I ended up buying two and I absolutely love them. I have them hung about 20" up running something similar to the SPS AB+ (same percentages as the radion version). I see zero color separation. I am currently running 40% royal blue, 40% cool blue, 40% violet, 10%white, 10%red and 10% green. This is basically the SPS AB+ profile at 40%.
I LOVE the way the tank looks at 100%blues and 24%white/green/red so I hope to get there slowly.
Here are some pictures:
All channels 100% (this about about 500+ par most parts of the tank :-o)
My favorite blend (100 on RB, blue, violet. 20ish on whites, reds, greens) This provides around 350 par everywhere in the tank IIRC.
All blues 100%, 10% red and green, 0% white
SPS pics taken under the SPS AB+ profile.