SCROG or Topping?

I am just finishing up my first grow...chopped and dried 1 of 2 plants and got 1.5 ozs. I am planning a second grow. Just wanted some opinions on which would be the best option for me. I am planning on growing with a 400w hps in a shed about 5' x 10' x 5'. Probly only gonna use half the shed though. I know this is a disputed question but i would just like some opinions and reasoning from people with experience. Which would be more effective...an scrog, topping, or lst? Any info or opinions would be greatly appreciated.

A ScrOG let's you take the most advantage of a small light's coverage area and allows good light penetration, denser bud site coverage. Topping doesn't do much to control the canopy, hard for smaller lights to reach very deep but increases the number of bud sites versus not topping. LST is good to control the canopy somewhat but might as well add a screen and ScrOG. 1.5 oz off one plant isn't shabby, if it tends to be a short bushy strain and/or responds well to LST it is likely a good ScrOG candidate.