We ran one of these on a different board in 2014 and I still have the spreadsheet somewhere, which is the only reason I know how this ends.
It ends in about August. Not because anyone gets bored — because the thing you're measuring stops being a property of the network. A network is on time when it has more cash coming in than going out, and that is a state, not a character trait. The one that paid me like clockwork for two years went from perfect to gone in eleven weeks and nothing in the payment history predicted it, because the payment history was measuring the wrong thing. What predicted it was that they started pushing an offer I'd never heard of at a payout that made no sense, three months before the wheels came off. That's the leading indicator. On-time payment is the lagging one.
Keep the list. Just don't mistake it for a forecast. The half of it that's still accurate in December will be accurate by accident.
A - Net 30, nutra, EU, four cycles, four on time, biggest €5,100. Same network I've been on since 2022 and I fully expect to be posting in here in eighteen months about how it collapsed.