Yeah, i think part 4 or 5 of sanjay's write up had them, you are right, I remember them being pretty even all around. Should be very little difference what direction they face, and if it clears up some room for your T5's might work out great.
here's the link that has yours. My bookmark's are becoming a textbook :S
http://www.advancedaquarist.com/2009/1/review