Why not multiple 315's? I was actually surprised at the amount if penetration you get with them. My first flower with one I did 2 plants that ended up about 4-4.5' and they were solid all the way down....tops much bigger and denser, but the lowers were great looking. Like I said, 2 plants, so there wasn't a whole lot shark g the lower bud sites
Here ya go there Otis, stacked 315's 5 plant vert.
GR