what book are you reading?? lol
you can get a plant bigger than 20" using cfl's.. look at some of Roseman's cfl grows and you can see the true potential of cfl's
to the OP:
the slow release soil will probably kill your plants in a month... transplant them out of that soil ASAP unless you know alot about PH and salt lock
hte miracle grow will definitly kill your plants if you follow the directions on the box.
to be safe you need to use 1/4 of the amount of fertilizer than the box calls for, but do not reduce the quantity of water. you want that shit to be diluted heavily.
the bloodmeal works bettter during veg... the plants wont use nearly as much nitrogen for flowering as they will for vegging. if you use the bloodmeal right you shouldnt have to add any for flower anyways as it will already be in the soil.
bloodmeal is a slow releasing nitrogen fertilizer.. so if you put it in the soil at the beggining and then a week or 2 b4 flowering then thats all you should need.
as far as getting them to flower its just a matter of switching to 12/12.
as far as your lights, the 2700k's should be good for flowering... BUT they should also be no farther than 4-6 inches from the plant, and should be turned horizontal if you can get people care for
i wouldnt use a cfl smaller than 40w for any grow, but thats just me. there are people that will argue till there blue in the face saying 26w are the best cfl's... well ive used them and my current 46w lamps smoke them to hell... i got better yeild and quality off the same strain using 4 46w than i did using about 9 26w. i also found out that having less lamps reduces the heat.
as far as the 'bluish tinted lamp from home depot' if that is an incadescant lamp (like a regular light bulb but with a pretty blue powder coat on the glass) i would chuck it in the trash or use it for a reading light because thats all its good for... another cfl in that lamp socket would do you alot more good IMHO
just my .02. good luck with the grow, the first one is always the funnest when you get to toke up what you created
this thread here goes into GREAT length the pros and cons of CFL's and the diffrence it makes when there used properly:
Considering CFLs ? Pro and Con
and another one by the same guy that shows you what you can do with a cpl cfls and an old closet
Roseman's DIY Bubbleponics Tutorial