I'd say your plants are fairly healthy, although I agree with headshake...you probably need to transplant.

5000 lumens per sq. ft. is for flat surface area, not volume. So if you've got 17,000 lumens, you've got enough light to give a plant that is 3.4 sq. ft.--about a 22" x 22" space. That's enough a very good sized plant.

The problem with CFLs is that they aren't as good for bigger plants, since they don't have good canopy penetration. One thing you might want to consider is having about 3/4 of your lights on top, and 1/4 of them along the sides to promote budding. If, for instance, your plant is more like 18" x 18" (and I've had some 30-36" plants that were about that size), you can have 12,000 lumens on top, and 5,000 on the sides. That supplemental light under the canopy will help a lot.
Roughrider Reviewed by Roughrider on . CFL lumen help pls! so, i was strolling around the forum, i found 2000 lumens sq. ft./21500 lumens sq. m. = Absolute minimum for growth. You won't get much from this, especially after the plant has grown a bit. Not really enough to flower well. 3000 lumens sq. ft./32250 lumens sq. m. = Pretty Good growth. Enough light for the entire light cycle, although your yields may be lower. 4000 lumens sq. ft./43000 lumens sq. m. = Very good growth. Once you pass around 3500, growth rate and ability goes up fast. Rating: 5