Had a chance to demo one last year for a day in confection sunflowers.  Our yields aren’t real big, but I was impressed with it.  We have a 750 and a 740.  In wet flowers the stocks have a tendency to hang on the rotor nose and plug up the impeller.  The single rotor eliminates that issue entirely.  I ran a 12 row head on it and never had any problem with the capacity.  However, it wouldn’t surprise me if high yielding corn might test it.