What's a good 48" 6 X 54 Watt T-5 Combo?

[mx mr bean]

It's that time again to order 6 new T-5 bulbs. I currently am running 3 460nm actinic and 3 10,000K. I want to go back to the Giesemann Powerchrome series unless someone recommends a better brand . Any suggestions on a 6 bulb configuration for a 48" Nova Extreme Pro fixture? Thanks guys.