What I had in mind is some sort of ladder system, where each step would decrease the value of Ξ1 in volume. So lets quickly make up some steps for the example:
Ξ0 - Ξ10 - (100%)
Ξ10 - Ξ20 - (80%)
Ξ20 - Ξ30 - (60%)
Ξ30 - Ξ40 - (40%)
Ξ40+ - (20%)
Example 1: You generate Ξ14 in sales volume this week, your first Ξ10 will count for 100% towards your weekly volume, but the remaining Ξ4 will fall into the next bracket which means that the remaining Ξ4 will count for 80%.
Example 2: You generate Ξ37 in sales volume this week, your first Ξ10 will count for 100% towards your weekly volume, and the next Ξ10 will count for 80%, the next Ξ10 will count for 60% and the final Ξ7 will count for 40% towards your weekly volume.
I am sure there are some flaws to be worked out but this would be a significant improvement in the distribution. Right now one big artist is able to take an absurd large portion out of the weekly allocation, negatively impacting the smaller artists on the platform.