I will be using New Life Spectrum. The primary reason for pellets is it will be an office tank, which means I will likely use an auto-feeder or have co-workers feed the fish when I'm on business trips or vacation. It's much easier to drop in a few pellets that thaw out the mysis. Also, some of the frozen stuff gets a pretty stinky, not the best for an office setting.
I have two friends who have kept reef tanks for 15+ years on only pellets and flakes. I will likely mix it up from time to time, but pellets will be their main food source. I've always liked flame hawks, and just wanted to see if they could do well this pellets. Thanks!