Your session data calibrates the forecast. The more logs, the more accurate Sessions becomes for everyone.
This delta (actual vs model) is the core data that makes Sessions more accurate over time.
How it works: When you log actual conditions vs what the model predicted, Sessions tracks the delta per spot. Over time, each spot builds a correction factor — so when Capo Mannu consistently over-delivers by 20% on NW swells, the forecast adjusts.