It's fucking amazing he got such good results giving the plants such little room for root growth... truly amazing to see.

I am also a SunShine#4 user and I have grown with no drainage at all, I am curious if other people do the same thing with #4. Does it work fine because it's so airy? I would think you'd be shunned by other growers for not draining out most soil-like mediums...but for some reason SunShine seems to work fine without drainage. Can anyone else tell us about their experiences with the medium?