Prepping for a couple of green screen projects, and after reading the American Society of Cinematographers' 10th annual Manual, we're outfitting ourselves with an enhanced green screen package.
First, we're using Composite Components fabric and paint.  After such a huge endorsement by the ASC for this fabric over other options, it's in the kit.
Next, we're using KinoFlo light banks, and their 525nm Green lamps.  KinoFlo has great guidance on using their kits to achieve separation of colors and even lighting.
Finally, I'm modeling out the lighting in Houdini, using their physically based rendering engine and accurate measurements.
Oh, not quite finally, there's the camera.  We're using our new Sony F55 cameras, Cooke lenses and recording to 16 bit linear 4K raw.  It's going to be clean.