diff --git a/doc/config.rst b/doc/config.rst
index 9d4c3c15..57e1c5ec 100644
--- a/doc/config.rst
+++ b/doc/config.rst
@@ -202,4 +202,4 @@ Lowell TCM Hobo
 Vector
 ------
 - ``pressure_sensor_height`` and ``velocity_sample_volume_height`` to specify the elevations of these two sensors.
-- ``puv``: set to ``true`` to compute PUV wave statistics.
+- ``puv``: set to ``true`` to compute PUV wave statistics. **(EXPERIMENTAL)**
diff --git a/doc/vec.rst b/doc/vec.rst
index cff51f6f..0708dd2d 100644
--- a/doc/vec.rst
+++ b/doc/vec.rst
@@ -35,6 +35,8 @@ Compute wave statistics
 
 Use stglib's built-in wave-statistics toolbox to compute a wave-statistics file.
 
+**Experimental** PUV support is also present. Testing welcome!
+
 runvecnc2waves.py
 -----------------