[My tank is a tad unique in the lighting, but I really prefer it to the way it was.
Before it was 14k - 10k - 14k plus VHO actinics
Now it is 10k - 20k - 10k plus VHO actinics
All the bulbs were 250w
Now the center bulb is 400w.
10,000K are Ushio, 20,000K is XM.
Looks great, no regrets. I can even turn off the VHOs and the tank still looks great, but I keep them on as they add 320w worth of PAR to the tank.
Oh, and I voted 10,000K as well.]