Hps and cfl grow

Hi people in the middle of a grow now and I'm using 4 32 w fluoro tubes currently 6400 k and I'm on the 8th day of 12/12 and no signs of sex at all, just a little bump coming from where the sex should show, theirs one bump on each side, by the stems where the branches meet, I'm thinking of using a 150w hps and 6 23 w bulbs around the sides three on each side wall, for side lighting, 2700 lumens per sq/ft and 41 watts per sq ft (I know a bit low should have 50, but is 40 watts per sq ft okay to pull an ounce or so from each plant, scrog grow to so should be even light on all the top buds
 
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