diff --git a/README.md b/README.md
index a424395..ea14326 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 # MicroDexed
-## Dexed port for Teensy (3.5/3.6/4.0 with audio shield and LCD or OLED display)
-This is a port of the original Dexed/msfa engine (see https://github.com/asb2m10/dexed and https://github.com/google/music-synthesizer-for-android) to be used on a Teensy-3.5 or Teensy-3.6.
+## Dexed port for Teensy (3.6/4.0 with audio shield and LCD or OLED display)
+This is a port of the original Dexed/msfa engine (see https://github.com/asb2m10/dexed and https://github.com/google/music-synthesizer-for-android) to be used on a Teensy-3.6 or Teensy-4.0.
 
-The current state is: work in progress... 
+The current state is: work in progress... but near version 1.0! 
 
 ## License
 MicroDexed is licensed on the GPL v3. The msfa component (acronym for music synthesizer for android, see https://github.com/google/music-synthesizer-for-android) stays on the Apache 2.0 license to able to collaborate between projects.
@@ -12,6 +12,7 @@ MicroDexed is licensed on the GPL v3. The msfa component (acronym for music synt
 * Dexed engine by Pascal Gauthier (asb2m10)
 * DX Synth engine (as part of Dexed): Raph Levien and the msfa team
 * PPPlay : Great OPL3 implementation, with documented code :D
+* Thierry for extreme testing, discuss about different options and many good suggestions for handling
 
 ## Dexed comes with 3 engine types :
 
diff --git a/config.h b/config.h
index 1154216..344e135 100644
--- a/config.h
+++ b/config.h
@@ -43,7 +43,7 @@
 // Tools for testing MIDI:  https://github.com/gbevin/SendMIDI
 //                          https://github.com/gbevin/ReceiveMIDI
 
-#define VERSION "0.9.9b"
+#define VERSION "0.9.9c"
 
 //*************************************************************************************************
 //* DEVICE SETTINGS
@@ -240,8 +240,8 @@
 //*************************************************************************************************
 //* DO NO CHANGE ANYTHING BEYOND IF YOU DON'T KNOW WHAT YOU ARE DOING !!!
 //*************************************************************************************************
-#define NUM_DEXED 1
-#define MAX_DEXED 2
+#define NUM_DEXED 2
+#define MAX_DEXED 2 // No - even don't think about increasing this number! IT GENERATE MASSIVE PROBLEMS!
 //#define CPU_OVERLOAD_THROTTLE 95.0 // Level (in percent) when throttling should start
 #define CPU_OVERLOAD_THROTTLE_TIMER 100 // timer (in ms) when next throttling is possible
 #define CONTROL_RATE_MS 100