diff --git a/examples/rpslam.py b/examples/rpslam.py
index b5c4aef..ca831b8 100755
--- a/examples/rpslam.py
+++ b/examples/rpslam.py
@@ -22,7 +22,12 @@ along with this code.  If not, see <http://www.gnu.org/licenses/>.
 MAP_SIZE_PIXELS         = 500
 MAP_SIZE_METERS         = 10
 LIDAR_DEVICE            = '/dev/ttyUSB0'
-MIN_SAMPLES             = 200
+
+
+# Ideally we could use all 250 or so samples that the RPLidar delivers in one 
+# scan, but on slower computers you'll get an empty map and unchanging position
+# at that rate.
+MIN_SAMPLES   = 200
 
 from breezyslam.algorithms import RMHC_SLAM
 from breezyslam.sensors import RPLidarA1 as LaserModel
diff --git a/examples/rpslam_scipy.py b/examples/rpslam_scipy.py
index de65187..663aa2e 100755
--- a/examples/rpslam_scipy.py
+++ b/examples/rpslam_scipy.py
@@ -22,7 +22,11 @@ along with this code.  If not, see <http://www.gnu.org/licenses/>.
 MAP_SIZE_PIXELS         = 500
 MAP_SIZE_METERS         = 10
 LIDAR_DEVICE            = '/dev/ttyUSB0'
-MIN_SAMPLES             = 180
+
+# Ideally we could use all 250 or so samples that the RPLidar delivers in one 
+# scan, but on slower computers you'll get an empty map and unchanging position
+# at that rate.
+MIN_SAMPLES = 180
 
 from breezyslam.algorithms import RMHC_SLAM
 from breezyslam.sensors import RPLidarA1 as LaserModel