Grams, Watts, surface, growstyles.

Hi peeps,

In my current grow journal there's a nice discussion about HIDs being better the fluros/CFLs and so on.
I don't want to get into that here.
But it did give me a nice idea, I want to compare results of grows.
Preferably grows with growjournals on this forum.
I wanna talk data, quantitive things and most importantly grams per watt.
Lets compare grams grams per watt with grow-specifics like I listed below:

I'll go first for my first grow (see sig) :

Lighting power : 108W
Lighting type : 6 flurotubes
Number of plants : 1 plant
Medium : soil
Surface of grow (surface of plants as seen from above) : 4 sq. feet
Growstyle : cut off them tops.
Dry yield : 30 grams
Score : 0.27 grams per watt.

Can anyone else supply input based on this list?