Hey Rusty, let's chat! We've been working on improved pathfinding at Amboss with an objective to reduce probes and reliance on probes to predict better routes.
Pathfinding at the node level is a good thing to optimize, but it will be inferior to more collaborative/centralized pathfinding simply because it has more data to play with.

We're ready with an endpoint for pathfinding and are benchmarking it against LND in different parts of the network to evaluate our predictions.