What were the years they did this? I remember qualifying skaters in two groups, back when they made everybody skate in the Q round. It was awful. It seemed every year one group was distinctly weaker than the other and there was no consistency between the two judging panels. That one didn't last long.They could just let everybody skate the SP in two groups like before.
I can't imagine how they could fairly implement any system where points are added into the result without having everyone marked by the same judges.