diff --git a/creality-ender3/Marlin-2.1.2.4/Marlin/Configuration.h b/creality-ender3/Marlin-2.1.2.4/Marlin/Configuration.h
index 2a83f22..9dfa0f8 100644
--- a/creality-ender3/Marlin-2.1.2.4/Marlin/Configuration.h
+++ b/creality-ender3/Marlin-2.1.2.4/Marlin/Configuration.h
@@ -634,7 +634,7 @@
 // Above this temperature the heater will be switched off.
 // This can protect components from overheating, but NOT from shorts and failures.
 // (Use MINTEMP for thermistor short/failure protection.)
-#define HEATER_0_MAXTEMP 275
+#define HEATER_0_MAXTEMP 315 // MBO: Original 275 / Sprite Pro 315
 #define HEATER_1_MAXTEMP 275
 #define HEATER_2_MAXTEMP 275
 #define HEATER_3_MAXTEMP 275
@@ -834,8 +834,8 @@
   #define PID_FUNCTIONAL_RANGE 10 // If the temperature difference between the target temperature and the actual temperature
                                   // is more than PID_FUNCTIONAL_RANGE then the PID will be shut off and the heater will be set to min/max.
 
-  //#define PID_EDIT_MENU         // Add PID editing to the "Advanced Settings" menu. (~700 bytes of flash)
-#define PID_AUTOTUNE_MENU     // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of flash)
+  #define PID_EDIT_MENU         // Add PID editing to the "Advanced Settings" menu. (~700 bytes of flash) // MBO
+  #define PID_AUTOTUNE_MENU     // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of flash) // MBO
 #endif
 
 // @section safety
@@ -855,7 +855,7 @@
  * Note: For Bowden Extruders make this large enough to allow load/unload.
  */
 #define PREVENT_LENGTHY_EXTRUDE
-#define EXTRUDE_MAXLENGTH 600
+#define EXTRUDE_MAXLENGTH 200 // MBO: Original value: 600 / Sprite Pro: 200
 
 //===========================================================================
 //======================== Thermal Runaway Protection =======================
@@ -1170,7 +1170,7 @@
 //#define ENDSTOP_NOISE_THRESHOLD 2
 
 // Check for stuck or disconnected endstops during homing moves.
-//#define DETECT_BROKEN_ENDSTOP
+#define DETECT_BROKEN_ENDSTOP // MBO: enable
 
 //=============================================================================
 //============================== Movement Settings ============================
@@ -1197,7 +1197,7 @@
  * Override with M92
  *                                      X, Y, Z [, I [, J [, K...]]], E0 [, E1[, E2...]]
  */
-#define DEFAULT_AXIS_STEPS_PER_UNIT   { 80, 80, 400, 93 }
+#define DEFAULT_AXIS_STEPS_PER_UNIT   { 80, 80, 400, 93 } // MBO: change e-step (93) to fit Sprite Pro => https://www.youtube.com/watch?v=lH-RrjtiC8M
 
 /**
  * Default Max Feed Rate (linear=mm/s, rotational=°/s)