Here is my T-5, mixed CFL, Overdriven T8 bloom setup. I also run a veg tent on 2- 2 bulb 4' T8s that I added a second balast to. Home depot now sells HO T8 bulbs that run on 59 watts. I just add a balast to each $10.00 shop light and double the lumen output on a T8. Aquarium people do this to grow coral. I have been running these lights for 6 mos. now and I just changed them. I don't know if my supercharged T8 qualifies in the club, but I have a 4', 4 bulb T5 and a 4' 6 bulb T5. ( ten T5 bulbs total)
I know the argument regarding bud density and the use of fluorescent lighting vs. HID, but I am posting pictures of what I have been able to do.
I believe side lighting, reflection, LST and vertical lighting can produce dense buds. Here is a picture of a White Rhino Lolipoped. I counted over 35 3-5 gram, rock hard nuggets.
I basically surround the plants with light vertically, horizontally and from above. Mounting used vanity light fixtures along the wall vertically seem to really promote bud development.
I don't think its always about light intensity, but about PAR. I have 2700k, 3000k, 2100k, 6500k, and 3500k. Here is some pictures. These are aprox 1 week old. The Boss Hoggs in the pics have really taken off this week.