I have a SPS dominate Reefer 250 that I currently have a XR30G6 Blue over it. Works great, but I just am cutting it short left to right. However, more importantly, I think as this tank grows in there will be lots of shadowing, which has me wanting to put a supplemental lighting system on this. On paper I really like the dimmable T5. To me this looks like the best 1 - 2 punch. But then there is the Reef Brites, and when will T5s be really hard to get? Anyone have any thoughts?