diff --git a/.vscode/settings.json b/.vscode/settings.json
index d7912ee..aec1443 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,6 +1,60 @@
 {
   "files.associations": {
     "iostream": "cpp",
-    "ostream": "cpp"
+    "ostream": "cpp",
+    "atomic": "cpp",
+    "bit": "cpp",
+    "cctype": "cpp",
+    "charconv": "cpp",
+    "chrono": "cpp",
+    "clocale": "cpp",
+    "cmath": "cpp",
+    "compare": "cpp",
+    "concepts": "cpp",
+    "cstddef": "cpp",
+    "cstdint": "cpp",
+    "cstdio": "cpp",
+    "cstdlib": "cpp",
+    "cstring": "cpp",
+    "ctime": "cpp",
+    "cwchar": "cpp",
+    "exception": "cpp",
+    "format": "cpp",
+    "forward_list": "cpp",
+    "initializer_list": "cpp",
+    "iomanip": "cpp",
+    "ios": "cpp",
+    "iosfwd": "cpp",
+    "istream": "cpp",
+    "iterator": "cpp",
+    "limits": "cpp",
+    "locale": "cpp",
+    "memory": "cpp",
+    "new": "cpp",
+    "optional": "cpp",
+    "ratio": "cpp",
+    "sstream": "cpp",
+    "stdexcept": "cpp",
+    "streambuf": "cpp",
+    "string": "cpp",
+    "system_error": "cpp",
+    "tuple": "cpp",
+    "type_traits": "cpp",
+    "typeinfo": "cpp",
+    "utility": "cpp",
+    "vector": "cpp",
+    "xfacet": "cpp",
+    "xiosbase": "cpp",
+    "xlocale": "cpp",
+    "xlocbuf": "cpp",
+    "xlocinfo": "cpp",
+    "xlocmes": "cpp",
+    "xlocmon": "cpp",
+    "xlocnum": "cpp",
+    "xloctime": "cpp",
+    "xmemory": "cpp",
+    "xstring": "cpp",
+    "xtr1common": "cpp",
+    "xutility": "cpp"
   }
 }
\ No newline at end of file
diff --git a/V4/demo/demo.cpp b/V4/demo/demo.cpp
index ce52e8b..1cb10a2 100644
--- a/V4/demo/demo.cpp
+++ b/V4/demo/demo.cpp
@@ -1,3 +1,4 @@
+#include <chrono>
 #include <iostream>
 
 #include "../econSpd.h"
@@ -122,11 +123,13 @@ int main() {
   std::cout << "Mach for CI " << ci << ": " << ratioedMach << std::endl << std::endl;
   std::cout << "END Step-By-Step" << std::endl << std::endl << std::endl;
 
-
   std::cout << "BEGIN All-In-One" << std::endl << std::endl;
 
+  auto start = std::chrono::high_resolution_clock::now();
   float aioMach = ci2mach(altitude, weight, tipTankPercent, ci);
+  auto stop = std::chrono::high_resolution_clock::now();
+  auto duration = std::chrono::duration_cast<std::chrono::nanoseconds>(stop - start);
   
   std::cout << "Mach for CI " << ci << ": " << aioMach << std::endl << std::endl;
-  std::cout << "END All-In-One" << std::endl ;
+  std::cout << "END All-In-One, " << duration.count() << std::endl ;
 }
\ No newline at end of file
diff --git a/V4/demo/demo.exe b/V4/demo/demo.exe
index 0da209a..4621d25 100644
Binary files a/V4/demo/demo.exe and b/V4/demo/demo.exe differ
diff --git a/V4/demo/demo.ilk b/V4/demo/demo.ilk
index 0e4e4f1..626a0c9 100644
Binary files a/V4/demo/demo.ilk and b/V4/demo/demo.ilk differ
diff --git a/V4/demo/demo.obj b/V4/demo/demo.obj
index 133d0d5..c37320e 100644
Binary files a/V4/demo/demo.obj and b/V4/demo/demo.obj differ
diff --git a/V4/demo/demo.pdb b/V4/demo/demo.pdb
index 760fc56..13a873d 100644
Binary files a/V4/demo/demo.pdb and b/V4/demo/demo.pdb differ
diff --git a/V4/demo/vc140.pdb b/V4/demo/vc140.pdb
index 502ca24..07efeb5 100644
Binary files a/V4/demo/vc140.pdb and b/V4/demo/vc140.pdb differ