No they aren't full spectrum bulbs. They are 2700k which is perfect!
Full spectrum bulbs as far as I know aren't shaped in a spiral.
You can definitely maximize your lumen's by:
1. Moving your lights to centimeters away from your plants.
2. Making reflectors of some sort. You don't have to get something heavy to sit there and cause a big ventalation problem. Just hang a few peices of white paper, or ANYTHING really; as long as its white/reflective you can definitly use some of those lumen's!!
Keep posting pics as the weeks go on, I'm on day 16 of flowering my 3 plants under 7 CFL's...So this interests me!