I think the cone design might concentrate the light too much in one spot, you want a more open hood me thinks for a better even distribution of light.
I would say about 12" or so should be sufficient for a 400W MH
Whatever you prefer bro - personally I like to smoke in the evenings only & watch TV/listen to music with a stoopid grin on my face
But if I had to choose for ya I'd go with smoke it on Friday before you get on the train & enjoy the ride!
My little collection (stored in fridge in air tight container with a sachet of Silica):
White Skunk
Ladyburn 1974
EasyRyder
White Widow
Diesel Ryder
S.African Durban Poison x Skunk
Northern Lights x Big Bud
Sweet Black Angel
La Blanca
BCN Diesel
Mataro Blue
Thai/Haze x Skunk
Motavation
Super...
CONDOM HISTORY
Interesting piece of history!...
In 1272, the Arabic Muslims
invented the condom, using a goat's lower intestine.
In 1873, the British somewhat refined the idea by taking the intestine out of the goat first.
Yeah ideally start them off in the same pot as you intend to finish them off in - Attitude Seed Bank is prob the best for choice plus you get some freebies & 10% discount if you enter '420' at checkout.. Diesel Ryder, Easy Ryder, Super Cali Haze, Blue Himalayan Diesel are all good Auto strains...