diff --git a/src/BackpackServiceProvider.php b/src/BackpackServiceProvider.php
index 113f1c0090..4bed0a47f7 100644
--- a/src/BackpackServiceProvider.php
+++ b/src/BackpackServiceProvider.php
@@ -242,7 +242,7 @@ protected function mergeConfigFromOperationsDirectory()
         $operationConfigs = scandir(__DIR__.'/config/backpack/operations/');
         $operationConfigs = array_diff($operationConfigs, ['.', '..']);
 
-        if (!count($operationConfigs)) {
+        if (! count($operationConfigs)) {
             return;
         }
 
diff --git a/src/app/Library/CrudPanel/Traits/Fields.php b/src/app/Library/CrudPanel/Traits/Fields.php
index 3e515f54eb..56ef42c7bf 100644
--- a/src/app/Library/CrudPanel/Traits/Fields.php
+++ b/src/app/Library/CrudPanel/Traits/Fields.php
@@ -429,13 +429,10 @@ public function getAllFieldNames()
      */
     public function getStrippedSaveRequest()
     {
-        $setting = $this->getOperationSetting('saveAllInputsExcept');
-        if ($setting == false || $setting == null) {
-            return $this->getRequest()->only($this->getAllFieldNames());
-        }
+        $setting = $this->getOperationSetting('strippedRequest');
 
-        if (is_array($setting)) {
-            return $this->getRequest()->except($this->getOperationSetting('saveAllInputsExcept'));
+        if (is_callable($setting)) {
+            return $setting($this->getRequest());
         }
 
         return $this->getRequest()->only($this->getAllFieldNames());
diff --git a/src/config/backpack/crud.php b/src/config/backpack/crud.php
index e799e7f3a0..8067cc8b35 100644
--- a/src/config/backpack/crud.php
+++ b/src/config/backpack/crud.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * Backpack\CRUD preferences
+ * Backpack\CRUD preferences.
  */
 
 return [
diff --git a/src/config/backpack/operations/create.php b/src/config/backpack/operations/create.php
index 87c8763efd..4166f3d4e3 100644
--- a/src/config/backpack/operations/create.php
+++ b/src/config/backpack/operations/create.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * Configurations for Backpack's CreateOperation
+ * Configurations for Backpack's CreateOperation.
  *
  * @see https://backpackforlaravel.com/docs/crud-operation-create
  */
@@ -35,9 +35,15 @@
     // Should we warn a user before leaving the page with unsaved changes?
     'warnBeforeLeaving' => false,
 
-    // Before saving the entry, how would you like the request to be stripped?
-    // - false - ONLY save inputs that have fields (safest)
-    // - [x, y, z] - save ALL inputs, EXCEPT the ones given in this array
-    'saveAllInputsExcept' => false,
-    // 'saveAllInputsExcept' => ['_token', '_method', '_http_referrer', '_current_tab', '_save_action'],
+/**
+ * Before saving the entry, how would you like the request to be stripped?
+ * - false - fall back to Backpack's default (ONLY save inputs that have fields)
+ * - closure - process your own request (example removes all inputs that begin with underscode).
+ *
+ * @param  \Illuminate\Http\Request  $request
+ * @return array
+ */
+    // 'strippedRequest' => (function ($request) {
+    //     return $request->except('_token', '_method', '_http_referrer', '_current_tab', '_save_action');
+    // }),
 ];
diff --git a/src/config/backpack/operations/list.php b/src/config/backpack/operations/list.php
index 0bc8e8678c..e860fac259 100644
--- a/src/config/backpack/operations/list.php
+++ b/src/config/backpack/operations/list.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * Configurations for Backpack's ListOperation
+ * Configurations for Backpack's ListOperation.
  *
  * @see https://backpackforlaravel.com/docs/crud-operation-list
  */
diff --git a/src/config/backpack/operations/reorder.php b/src/config/backpack/operations/reorder.php
index 51ec5e2097..56c163e513 100644
--- a/src/config/backpack/operations/reorder.php
+++ b/src/config/backpack/operations/reorder.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * Configurations for Backpack's ReorderOperation
+ * Configurations for Backpack's ReorderOperation.
  *
  * @see https://backpackforlaravel.com/docs/crud-operation-reorder
  */
diff --git a/src/config/backpack/operations/show.php b/src/config/backpack/operations/show.php
index e9422f0fde..33efbbe923 100644
--- a/src/config/backpack/operations/show.php
+++ b/src/config/backpack/operations/show.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * Configurations for Backpack's ShowOperation
+ * Configurations for Backpack's ShowOperation.
  *
  * @see https://backpackforlaravel.com/docs/crud-operation-show
  */
diff --git a/src/config/backpack/operations/update.php b/src/config/backpack/operations/update.php
index a42b6def69..d5997d2da9 100644
--- a/src/config/backpack/operations/update.php
+++ b/src/config/backpack/operations/update.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * Configurations for Backpack's UpdateOperation
+ * Configurations for Backpack's UpdateOperation.
  *
  * @see https://backpackforlaravel.com/docs/crud-operation-update
  */
@@ -35,9 +35,15 @@
     // Should we warn a user before leaving the page with unsaved changes?
     'warnBeforeLeaving' => false,
 
-    // Before saving the entry, how would you like the request to be stripped?
-    // - false - Save ONLY inputs that have a field (safest, default);
-    // - [x, y, z] - Save ALL inputs, EXCEPT the ones given in this array;
-    'saveAllInputsExcept' => false,
-    // 'saveAllInputsExcept' => ['_token', '_method', '_http_referrer', '_current_tab', '_save_action'],
+/**
+ * Before saving the entry, how would you like the request to be stripped?
+ * - false - fall back to Backpack's default (ONLY save inputs that have fields)
+ * - closure - process your own request (example removes all inputs that begin with underscode).
+ *
+ * @param  \Illuminate\Http\Request  $request
+ * @return array
+ */
+    // 'strippedRequest' => (function ($request) {
+    //     return $request->except('_token', '_method', '_http_referrer', '_current_tab', '_save_action');
+    // }),
 ];