I think this could be easily solved with the following changes:

- When you use Toil of the Mountaineer on a node, it'd register the Eorzean time it spawns and specific area it spawns (instead of that ???) on your gathering log entry.
- When you first gather an item, it would register in which slot it is available.

This basically kills the need for any notes on website/notepad, and further adds to the game immersion of being a gatherer.