diff --git a/README.md b/README.md
index 7e77f9a..fabb0bb 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,12 @@ The most import definitions are the BasePattern, and BaseRecipe, which define th
 The way to run a MEOW system is to create and MeowRunner instance, found in **core/runner.py**. This will take 1 or more Monitors, 1 or more Handlers, and 1 or more Conductors. In turn, these will listen for events, respond to events, and execute any analysis identified. Examples of how this can be run can be found in **tests/testRunner.py**
 
 ## Testing
-Pytest unittests are provided within the 'tests directory, as well as a script **test_all.sh** for calling all test scripts from a single command. Individual test scripts can be started using:
+Pytest unittests are provided within the 'tests directory, as well as a script **test_all.sh** for calling all test scripts from a single command. This can be
+run as:
+
+    test_all.sh -s
+
+This will skip the more time consuming tests if you just need quick feedback. Without the -s argument then all tests will be run. Individual test scripts can be started using:
 
     pytest test_runner.py::MeowTests -W ignore::DeprecationWarning
 
diff --git a/tests/test_all.sh b/tests/test_all.sh
index 0eb30f4..d0008eb 100755
--- a/tests/test_all.sh
+++ b/tests/test_all.sh
@@ -7,15 +7,31 @@ starting_working_dir=$(pwd)
 script_name=$(basename "$0")
 script_dir=$(dirname "$(realpath "$0")")
 
+skip_long_tests=0
+
+for arg in "$@"
+do
+  echo "Given arg: $arg";
+  if [[ $arg == -s ]]
+  then
+    echo "skippy the kangaroo"
+    skip_long_tests=1
+  fi
+done
+
 cd $script_dir
 
 # Gather all other test files and run pytest
 search_dir=.
 for entry in "$search_dir"/*
 do
-  if  [[ $entry == ./test* ]] && [[ -f $entry ]] && [[ $entry != ./$script_name ]] && [[ $entry != ./shared.py ]];
+  if  [[ $entry == ./test* ]] \
+    && [[ -f $entry ]] \
+    && [[ $entry != ./$script_name ]] \
+    && [[ $entry != ./shared.py ]];
   then
-    pytest $entry "-W ignore::DeprecationWarning"
+    SKIP_LONG=$skip_long_tests pytest $entry "-W ignore::DeprecationWarning"
+#    SKIP_LONG=$skip_long_tests pytest $entry
   fi
 done
 
diff --git a/tests/test_runner.py b/tests/test_runner.py
index b0d2ad6..67de0f4 100644
--- a/tests/test_runner.py
+++ b/tests/test_runner.py
@@ -3,10 +3,11 @@ import io
 import importlib
 import os
 import unittest
- 
+
 from random import shuffle
 from shutil import copy
 from time import sleep
+from warnings import warn
 
 from meow_base.core.base_conductor import BaseConductor
 from meow_base.core.base_handler import BaseHandler
@@ -116,6 +117,7 @@ recipe_generator = JupyterNotebookRecipe(
     requirements={recipe_generator_key: recipe_generator_req}           
 )
 
+ 
 class MeowTests(unittest.TestCase):
     def setUp(self)->None:
         super().setUp()
@@ -970,6 +972,10 @@ class MeowTests(unittest.TestCase):
 
     # Test some actual scientific analysis, but in a simple progression
     def testScientificAnalysisAllGood(self)->None:
+        if os.environ["SKIP_LONG"]:
+            warn("Skipping testScientificAnalysisAllGood")
+            return
+        
         patterns = {
             'pattern_check': pattern_check,
             'pattern_segment': pattern_segment,
@@ -1090,6 +1096,10 @@ class MeowTests(unittest.TestCase):
 
     # Test some actual scientific analysis, in a predicatable loop
     def testScientificAnalysisPredictableLoop(self)->None:
+        if os.environ["SKIP_LONG"]:
+            warn("Skipping testScientificAnalysisPredictableLoop")
+            return
+        
         patterns = {
             'pattern_check': pattern_check,
             'pattern_segment': pattern_segment,
@@ -1225,6 +1235,10 @@ class MeowTests(unittest.TestCase):
 
     # Test some actual scientific analysis, in an unpredicatable loop
     def testScientificAnalysisRandomLoop(self)->None:
+        if os.environ["SKIP_LONG"]:
+            warn("Skipping testScientificAnalysisRandomLoop")
+            return
+
         pattern_regenerate_random = FileEventPattern(
             "pattern_regenerate_random",
             os.path.join("foam_ct_data_discarded", "*"),
@@ -1373,6 +1387,10 @@ class MeowTests(unittest.TestCase):
 
     # Test some actual scientific analysis, in an unpredicatable loop
     def testScientificAnalysisMassiveRandomLoop(self)->None:
+        if os.environ["SKIP_LONG"]:
+            warn("Skipping testScientificAnalysisMassiveRandomLoop")
+            return
+
         pattern_regenerate_random = FileEventPattern(
             "pattern_regenerate_random",
             os.path.join("foam_ct_data_discarded", "*"),