you call it best grow style 400w

so here are the details I got a 400 hps in a 20"x40"x5' cabinet. the light is in a cool tube with passive intake and exhausting through the light. All plants will be my own clones.
Heres where you decide whats the best method of growing in here?
I was thinking of a perpetual sog 4 plants every 3 weeks
or
4 full sized bushes veging for 3 weeks
or
maybe a couple DWC buckets (i've done dirt and hydro never DWC) they look cool
or ?????????
I'll be cutting clones next friday so i got like 2 weeks to decide

I would think DWC would result in the best yield. Probably only a slight learning curve too if you have never done DWC. You should do a SCROG method so 4 plants would be perfect. Looks like a solid setup! Good luck with your grow