Good luck and go for it....I think you might be happier with less lights on time then the manipulation of light spectrum.
Give this a try.....8, 7 or even 6 hrs of lights on and the rest off.....If your running enough intensity in your lights foot print. The plant will receive enough lighting in those time parameters to really speed up bloom enough to reach the goals you seek....At 6 on, 18 off your reducing your electric bill by 50% too! The more actual lumins you have, the better it works......I run 1K's and have no trouble with loose or airy buds......I do run a Co2 generator but have seen others in our "collective" not gas and get the nice tight budding we all look for...
Doc
P.S. I forgot to say that I have found 12/12 and longer to give me more instability in my plants. ie; I get some herming from clones that have never done that before. If you look up things on this exact subject. I have found others who noticed the same things, including bug attacks that have been not a problem in the past. Once I reduced my bloom lighting time to less then 12/12,,,,These little hiccups - were gone again.......just saying.
Doc