diff --git a/Application/src/tracker/VideoOpener.cpp b/Application/src/tracker/VideoOpener.cpp
index 71dc7d3d1a33a412e4ef0ed94ee6bbd6030dcd7c..e02915b31d1542cc59808654e2288cd0ff5527b2 100644
--- a/Application/src/tracker/VideoOpener.cpp
+++ b/Application/src/tracker/VideoOpener.cpp
@@ -115,9 +115,13 @@ VideoOpener::VideoOpener() {
                 guard.unlock();
                 try {
                     auto path = ptr->_path;
+#ifndef NDEBUG
                     Debug("Removing stale buffer '%S'...", &path.str());
+#endif
                     ptr = nullptr;
+#ifndef NDEBUG
                     Debug("Removed stale buffer '%S'.", &path.str());
+#endif
                 } catch(const std::exception& e) {
                     Except("Exception while freeing stale buffer '%s'.", e.what());
                 }
@@ -125,12 +129,16 @@ VideoOpener::VideoOpener() {
                 
                 ++i;
             }
-            
+      
+#ifndef NDEBUG
             if(i)
                 Debug("Removed %d stale buffers", i);
+#endif
         }
         
+#ifndef NDEBUG
         Debug("Quit stale thread.");
+#endif
     });
     
     _horizontal = std::make_shared<gui::HorizontalLayout>();
diff --git a/docs/parameters_tgrabs.rst b/docs/parameters_tgrabs.rst
index b660fa9ee11b460e9c53ee19e76817a580575679..4cb5e0e1253fc2665622d2cb9e9ae700961f2ffa 100644
--- a/docs/parameters_tgrabs.rst
+++ b/docs/parameters_tgrabs.rst
@@ -34,7 +34,7 @@ TGrabs parameters
 	**default value:** 100
 
 
-	Number of samples taken to generate an average image. Usually has to be less if `average_method` is set to max.
+	Number of samples taken to generate an average image. Usually fewer are necessary for `average_method`s max, and min.
 
 	.. seealso:: :func:`average_method`, 
 
@@ -46,9 +46,9 @@ TGrabs parameters
 
 	**possible values:**
 		- `mean`: Sum all samples and divide by N.
-		- `mode`: Calculate a per-pixel median of the samples.
-		- `max`: Use a per-pixel minimum across samples.
-		- `min`: Use a per-pixel maximum across samples.
+		- `mode`: Calculate a per-pixel median of the samples to avoid noise. More computationally involved than mean, but often better results.
+		- `max`: Use a per-pixel minimum across samples. Usually a good choice for short videos with black backgrounds and individuals that do not move much.
+		- `min`: Use a per-pixel maximum across samples. Usually a good choice for short videos with white backgrounds and individuals that do not move much.
 
 	Determines the way in which the background samples are combined. The background generated in the process will be used to subtract background from foreground objects during conversion.