I hear what your saying and appreciate the advise.

The hot spots aren't really that intense with this 150 watt HPS. I'd be concerned if I was to use some real wattage though. I've laid my arm under the light for a good 10 minutes and you could definetly see and feel where the light was concentrated, but it was still only warm on the skin. The air flow around the inside of the cabinet keeps the leaves fairly busy as well.
I'm not opposed to splitting the Ref in half and batwinging it, I know those concentrated beams of light are wasted on a small location and should be dispersed more.

And thank you for the link!

Feel free to see my updated pics and log in my signature.