Looking good, that is a nice wave. Will be interested to see how you fair with the T5s. Without starting a whole LED/T5 debate, I think it is a good call. As Phil noted, I wouldn't be too worried about 3 ppm nitrates either, probably right around where you want it to be for SPS anyway. Your LPS may even appreciate more.
I do love LED and will be going back to them. I just need new lights now and a decent LED system is just not in the budget. Looking to spend almost $900 for the lights that I want and I was able to get a 6 bulb T5 with bulbs for A LOT cheaper.