There is certain in-elasticity across all payment sizes. This is why with growing proportional fee betweenness-centrality decreases rapidly. But if we look more carefully at larger payments starting from 1M sats, betweenness-centrality doesn't really drops between 2 and 8 sats per million. This is the place where we could maximize fee revenue and this is especially good because we measured it for very large payments. 

I am sorry I wasn't clear because my intention was to write just fast. I couldn't spend more time on this post, sorry.

> How to maximize LN fees while preserving as high payment flow as possible?".

Pretend I'm blind and cannot see the chart.   What is it telling me?   I ask because I can see the chart but am not sure what I am supposed to gather from it.

cryptocoin

Betweenness-centrality allows to optimize fees for well-connected node while minimizing potential decrease in routing volumes. 