Both drills were 12" spacing with the twin wing on the SH and 4" spread on the C2. When we drove over the SH acres with the sprayer it felt smoother.
Never got a chance to demo the Quantum but did see some fields it seeded and it looked like it had nicer finish then my C2.
I like the Morris drill, I've been happy with my C2 but wish I had sectional control. The sectional control on the SH looks like a better idea then the Morris IMO.