The book does mention CFLs but just a brief mention, CH9 is a long one, keep reading. CFL, HID, HPS or MH, doesnt matter when discussing the light spectrum the plant uses. Some people mix the light, (similar to what you have) and use a heavier blue to red ratio during veg and then switch to heavier red to blue ratio during flower. Personally I like to use all 6500k cfls for veg and all 2700k for flower, why you ask? Yes the sun doesnt just emit blue or red light, but there are reasons blue is sometimes stronger than red and vice versa such as a phenomena called "Red Shift" and the fact that the earth is on a tilted axis that rotates and orbits the sun. With that said reception of blue light is stronger when the sun angle is as close to directly overhead (usually spring to summer season) the days are also longer which is why 18/6 or 24/0 hrs of light/dark are suggested for flowering. Then when the sun angle is lower (fall to winter season) red is received more than blue and for shorter periods of time (which is why 12/12 is good for flowering). The idea to indoor growing is that you want to create the most ideal conditions for growing and producing THC, one way to do this is to mimic exactly what nature would do, but why do that indoors, just move outside if that's the case. So since you are "playing god" so to say, you can (ideally) adjust every environmental aspect of your growing area to be the best for your plant, and in doing so you can "cut the crap" and give the plant only what it needs when it needs it.
I hope my ranting isnt too confusing and is of some help to you.
All that being said, your plant looks strong and healthy. I would put the lights as close to 2''-4'' from the leafs of the plant and like Total Head mentioned I would put some on the side when you start flowering. If you have proper ventilation, the lights shouldn't get too hot, cuz they're cfl, but having a small fan to keep them cool will also keep the plant from getting over heated. My best advice would be to goto a bookstore and try reading as much as you can in any Cannabis Horticulture/Cultivation book or find a Marijuana Grow Bible or that one on google. Another quick opinion of mine that might be helpful for you is that you have to try harder to kill one of these plants than to grow it, course there's a lot of work in making the perfect bud but even cutting corners and just doing minimal work taking care of it will get you a halfway decent production.
I'm just a noob starting my first grow (link in signature) and so far this is all I know from going into bookstores and reading stuff online. I'm almost ready to flower, not far behind you Wicked Pagan.
\m/