2700K and 6500K?

I was just reading %MiSTuRBoMbDiGgItty%'s post about what Ed Rosenthal said about using CFLs. So I'm now wondering when I'm flowering if I should throw a 6500K bulb in with my 2700Ks. He says they need the blue light for photosynthesis. Do you guys think this would help?

I use both in veg and flower.

I use 1 6500k for every two 2700k bulbs that I use.

You should use both for flower as the buds (while still use the blue light, the total amount of lblue light the use during flowering is significantly less )and atleast the 6500k mainly for veg. I currently have 7 2700k and 3 6500k for flowering on 3 plants.

i went (3)65k 1stmonth veg
2ndmonth rightnow9(1)27k(2)6500 veg to flower
3rdmonth((2)27k(1)65k flower
just for fun