If briefly, a year ago I was adjusting fees step-by-step from zero to about a thousand ppm and recorded in a spreadsheet how much the Lightning network was generating per day. After reaching a thousand ppm, I reduced the fees again step-by-step and continued recording. I ended up with a fairly large spreadsheet. The fees fluctuated daily, of course, but when I looked at which fees were generating the most satoshis per day, 700 ppm seemed to yield more on average than others. Not long ago, I tried feeding this spreadsheet to ChatGPT, and based on its analysis, it suggested using about 1185 ppm to maximize profit. I tried that, but it turned out not to be the best option. A few days ago, I decided to set it back to 700 ppm, as I did about a year ago, and again, this number proved very close to generating the most daily commission revenue. So I settled on that figure. I used to use a fee-balancing method, but then decided to abandon it. I'll look for where I might have written about it. Once I find it, I'll send you the link.