Just talking to the guys at my local fish store as well as extensive online reading. It seems to be a consensus that they do best under that spectrum range, although I definitely will add light in the blue range as well in order to bring out the color. Do you not agree with this? I was trying to confirm what I had been told which is why I started the thread.
Hey Chip; first let me say that a 175 MH supplemented with 4 VHO's in the configuration you are suggesting should be fine for BTA's and a haddoni.
My comment about your color temperature was really just an attempt to understand who is giving you advice

The truth is, while a 10K color temp MIGHT be ok for your anemones, just saying 10K color temp is no GUARANTEE it is ok for your anemones. The problem is, you can create 10K color temp an infinite number of ways be blending an infinite combination of lights. If your 10K "solution" includes a lot of blue and red, it is good. If your 10K solution contains a lot of yellow and green - it is not so good.
Remember that the primary purpose for lighting in a reef aquarium is to provide the proper bandwidths of light necessary for zooxanthellae to grow and thrive (the energy engines for corals and other photosynthetic organisms). Chlorophyll uses light that peaks in two specific spectra: blue/violet light of approx 440 nm wavelength, and orange/red light of approx 680 nm wavelength (see this chart).
The bottom line - you want lights that maximize the amount of spectral intensity that falls in these two bands. People use the term "PAR" to describe this light - it stands for "Photosynthetically Available Radiation". If you have a 10K light that is really bright, but has low PAR, your anemones will not do as well as a dimmer light that has a higher percentage of light as PAR.
Make sense?
Some people may prefer "whiter" or "yellower" lights because the human eye is more sensitive to light in this spectrum. But do not confuse what looks best to our eyes with what is best for our critters
All reef lighting should have spectral intensity charts and/or PAR information for you to review. The "art" of lighting comes from how you blend the lighting to provide the most benefit to your creatures while still providing enough yellow and green to be pleasing to the human eye. For THAT you will find a billion opinions. Some people just say "screw it" and buy a PAR light meter so they can compare how different configurations match up in the reality of their tank environment.
One last thing - lights high in PAR may still not provide the proper spectral intensities necessary for corals and other inverts to "color up" with dark pigmentation. This is why some people are struggling with current LED technology; the lights are narrow spectrum and provide a lot of PAR, but do not provide enough broad intensity (particularly in UV) for critters to darken up as much as you would like. Not as much is understood about this - but as LEDs become more mainstream, and cheaper, more efficient, and more intense, I expect they will resolve all of these issues.