It is fun picking bulbs...it all boils down to what your goals are. If you are keeping sps in areas other than the top of the tank bulb selection gets more complicated. I have done the bulb/ballast/reflector game too many times and it gets frustrating. Different ballasts will fire bulbs differently, reflectors play a part too, better designed ones can help overcome bulb deficiencies to some extent.
What ballast do you run, which reflector and what bulb are you currently using?
Gabriel...the Hammy 14K has awesome color but very low par. It was one of my favorites for color but the low par makes it unattractive for growth.