I think a very simple solution to this would be to increase the margin like 3% for the next grade materia across the board. So for example if Grade 1 has a 6% chance on the last meld then grade 2 would have a 9% chance, 3 would have 12%, 4 would have 15% chance on last meld. This would somewhat negate the price loss by equalizing demand to some degree because the increased percentage would maintain that demand.