diff --git a/calibration.html b/calibration.html
index 81b9406..49f8852 100644
--- a/calibration.html
+++ b/calibration.html
@@ -135,7 +135,7 @@
         <a href="#" data-featherlight="img/cube.jpg"><img class="thumb" src="img/cube.jpg" /></a>
         <form name="baselineForm" id="baselineForm" onsubmit="return false;">
             <h4>Additional start gcode</h4>
-            <p>If you have additional start commands, tick the box and enter the gcode. This will be inserted after temperatures are set and homing/ABL is complete. For the majority of users, you can skip this section.</p>
+            <p>If you have additional start commands, tick the box and enter the gcode. This will be inserted after temperatures are set and homing/ABL is complete. This can be used to add a hot end purge command. For the majority of users, you can skip this section.</p>
             <label>Additional start gcode:<input name="start" type="checkbox" onchange="toggle(!this.checked, '#baselineStart')" value="extraStart"></label>
             <textarea id="baselineStart" name="startgcode"></textarea>
             <script>
@@ -519,7 +519,7 @@
         <p>Here is the STL if you would like to slice a similar test yourself: <a href="files/retractiontest.stl">retractiontest.stl</a></p>
         <form name="retractionForm" id="retractionForm" onsubmit="return false;">
             <h4>Additional start gcode</h4>
-            <p>If you have additional start commands, tick the box and enter the gcode. This will be inserted after temperatures are set and homing/ABL is complete. For the majority of users, you can skip this section.</p>
+            <p>If you have additional start commands, tick the box and enter the gcode. This will be inserted after temperatures are set and homing/ABL is complete. This can be used to add a hot end purge command. For the majority of users, you can skip this section.</p>
             <label>Additional start gcode:<input name="start" type="checkbox" onchange="toggle(!this.checked, '#retractionStart')" value="extraStart"></label>
             <textarea id="retractionStart" name="startgcode"></textarea>
             <script>
@@ -641,7 +641,7 @@
         <p>Here is the STL if you would like to slice a similar test yourself: <a href="files/temperaturetower.stl">temperaturetower.stl</a></p>
         <form name="temperatureForm" id="temperatureForm" onsubmit="return false;">
             <h4>Additional start gcode</h4>
-            <p>If you have additional start commands, tick the box and enter the gcode. This will be inserted after temperatures are set and homing/ABL is complete. For the majority of users, you can skip this section.</p>
+            <p>If you have additional start commands, tick the box and enter the gcode. This will be inserted after temperatures are set and homing/ABL is complete. This can be used to add a hot end purge command. For the majority of users, you can skip this section.</p>
             <label>Additional start gcode:<input name="start" type="checkbox" onchange="toggle(!this.checked, '#temperatureStart')" value="extraStart"></label>
             <textarea id="temperatureStart" name="startgcode"></textarea>
             <script>
@@ -812,7 +812,7 @@
         <p>Use the following form to customise the gcode to your liking:</p>
         <form name="accelerationForm" id="accelerationForm" onsubmit="return false;">
             <h4>Additional start gcode</h4>
-            <p>If you have additional start commands, tick the box and enter the gcode. This will be inserted after temperatures are set and homing/ABL is complete. For the majority of users, you can skip this section.</p>
+            <p>If you have additional start commands, tick the box and enter the gcode. This will be inserted after temperatures are set and homing/ABL is complete. This can be used to add a hot end purge command. For the majority of users, you can skip this section.</p>
             <label>Additional start gcode:<input name="start" type="checkbox" onchange="toggle(!this.checked, '#accelerationStart')" value="extraStart"></label>
             <textarea id="accelerationStart" name="startgcode"></textarea>
             <script>