When a One-time Reading Is Enough
A one-time reading is usually enough when you are entering a topic for the first time, such as checking the general career direction for the year or the broad relationship trend lately.
Its value is that it gives you a baseline judgment and shows where the issue roughly sits before you decide what to do next.
When Destiny Chat Is the Better Next Step
Destiny chat becomes a better fit when you already have a baseline result and now face new developments, competing options or the need to push the question into action-level judgment.
It does not replace the one-time reading. It extends it into a more continuous process of judgment.