RMS doesn't sell perfecto, and perfecto is the only company who makes 150 Xhigh.
I have been using 4x110 VHO's on a 72, and it has been adequate for open brain and tongue corals on the bottom, and torches, trumpets and frogspawns about halfway up. In fact, I had put the pinapple too high when I first got it, and it started to turn pale and retract. I had to move it down. I don't mess with SPS corals, only LPS, and they just don't need as much light. In fact, I think people sometimes kill LPS by burning them. The one thing I have which requires good light is the crocea clam, and I keep it within a foot of the surface.
Eventually, I do plan to add some PC's or T5's. or maybe some lower wattage HQI's, but I just don't like the high wattage, high heat MH's.