using both 2700k and 6500k at same time

if i am on veg stage would it help if i add some 2700k cfls?

when i flower i would do the opposite, use some 6500k.

i was thinking of trying a 2:1 cfl ratio.
there are no scientific info on mixing spectrum to improve growth, or does it not make a difference..

curious

increased spectrum is always preferable to single spectrum. intensity is always the most important factor.