i just had a quick read of your other post .. im guessing that the 6500k is the blue light spectrum and the 125 watter you have is the red spectrum .. i would personally use both as in dual spectrum, but thats just me. however if you did decide to get your hps up and running.. it would be great.. and your CFL's can play a great advantage in lighting lower areas of the plant.
just my thoughts
not here to moan , here to help 
just my thoughts

just seen this.