A contour map is drawn at full pool. When the lake is down five feet, every number on it is wrong by five feet. BassHawk corrects every depth to the lake's level today.
Set Pool lets you pick the level yourself. Drag it up or down and the whole lake re-reads: which flats go dry, which humps come within reach, and where your waypoints will sit when the water comes back.
Raising the pool from 316 to 325 ft and watching the contours re-draw — Cedar Creek Lake, Texas
How to use it
Open the Maps tab, choose Sonar Survey and turn on Set Pool.
Use the + and − buttons to set a level; it shows how far that is from normal pool and from today.
Watch the contours and waypoint depths re-read at that level.