diff --git a/lib/svgpath.js b/lib/svgpath.js
index 0b45a2f..61a8858 100644
--- a/lib/svgpath.js
+++ b/lib/svgpath.js
@@ -171,28 +171,25 @@ SvgPath.prototype.__evaluateStack = function () {
 // Convert processed SVG Path back to string
 //
 SvgPath.prototype.toString = function () {
-  var elements = [];
+  var elements = [], skipCmd;
 
   this.__evaluateStack();
 
   for (var i = 0; i < this.segments.length; i++) {
     // remove repeating commands names
-    if (i > 0 && (this.segments[i][0] === this.segments[i - 1][0])) {
-      elements.push(this.segments[i].slice(1));
-      continue;
-    }
-    elements.push(this.segments[i]);
+    skipCmd = i > 0 && (this.segments[i][0] === this.segments[i - 1][0]);
+    elements = elements.concat(skipCmd ? this.segments[i].slice(1) : this.segments[i]);
   }
 
-  return [].concat.apply([], elements).join(' ')
-    // Optimizations: remove spaces around commands & before `-`
-    //
-    // We could also remove leading zeros for `0.5`-like values,
-    // but their count is too small to spend time for.
-    .replace(/ ?([achlmqrstvz]) ?/gi, '$1')
-    .replace(/ \-/g, '-')
-    // workaround for FontForge SVG importing bug
-    .replace(/zm/g, 'z m');
+  return elements.join(' ')
+            // Optimizations: remove spaces around commands & before `-`
+            //
+            // We could also remove leading zeros for `0.5`-like values,
+            // but their count is too small to spend time for.
+            .replace(/ ?([achlmqrstvz]) ?/gi, '$1')
+            .replace(/ \-/g, '-')
+            // workaround for FontForge SVG importing bug
+            .replace(/zm/g, 'z m');
 };
 
 
@@ -298,37 +295,39 @@ SvgPath.prototype.iterate = function (iterator, keepLazyStack) {
       needReplace = true;
     }
 
-    // all relative commands except Z
-    isRelative = 'achlmqrstv'.indexOf(s[0]) >= 0;
-    var nameLC = s[0].toLowerCase();
+    var isRelative = (s[0] === s[0].toLowerCase());
 
     // calculate absolute X and Y
-    if (nameLC === 'm') {
-      lastX = s[1] + (isRelative ? lastX : 0);
-      lastY = s[2] + (isRelative ? lastY : 0);
-      countourStartX = lastX;
-      countourStartY = lastY;
-      return;
-    }
+    switch (s[0]) {
+      case 'm':
+      case 'M':
+        lastX = s[1] + (isRelative ? lastX : 0);
+        lastY = s[2] + (isRelative ? lastY : 0);
+        countourStartX = lastX;
+        countourStartY = lastY;
+        return;
 
-    if (nameLC === 'h') {
-      lastX = s[1] + (isRelative ? lastX : 0);
-      return;
-    }
+      case 'h':
+      case 'H':
+        lastX = s[1] + (isRelative ? lastX : 0);
+        return;
 
-    if (nameLC === 'v') {
-      lastY = s[1] + (isRelative ? lastY : 0);
-      return;
-    }
+      case 'v':
+      case 'V':
+        lastY = s[1] + (isRelative ? lastY : 0);
+        return;
 
-    if (nameLC === 'z') {
-      lastX = countourStartX;
-      lastY = countourStartY;
-      return;
-    }
+      case 'z':
+      case 'Z':
+        // That make sence for multiple contours
+        lastX = countourStartX;
+        lastY = countourStartY;
+        return;
 
-    lastX = s[s.length - 2] + (isRelative ? lastX : 0);
-    lastY = s[s.length - 1] + (isRelative ? lastY : 0);
+      default:
+        lastX = s[s.length - 2] + (isRelative ? lastX : 0);
+        lastY = s[s.length - 1] + (isRelative ? lastY : 0);
+    }
   });
 
   // Replace segments if iterator return results
@@ -367,22 +366,23 @@ SvgPath.prototype.abs = function () {
 
     s[0] = nameUC;
 
-    // V is the only command, with shifted coords parity
-    if (name === 'v') {
-      s[1] += y;
-      return;
-    }
+    switch (name) {
+      case 'v':
+        // v has shifted coords parity
+        s[1] += y;
+        return;
 
-    // ARC is: ['A', rx, ry, x-axis-rotation, large-arc-flag, sweep-flag, x, y]
-    // touch x, y only
-    if (name === 'a') {
-      s[6] += x;
-      s[7] += y;
-      return;
-    }
+      case 'a':
+        // ARC is: ['A', rx, ry, x-axis-rotation, large-arc-flag, sweep-flag, x, y]
+        // touch x, y only
+        s[6] += x;
+        s[7] += y;
+        return;
 
-    for (i = 1; i < s.length; i++) {
-      s[i] += i % 2 ? x : y; // odd values are X, even - Y
+      default:
+        for (i = 1; i < s.length; i++) {
+          s[i] += i % 2 ? x : y; // odd values are X, even - Y
+        }
     }
   }, true);
 
@@ -402,24 +402,25 @@ SvgPath.prototype.rel = function () {
     // Skip relative commands
     if (name === nameLC) { return; }
 
-    s[0] = name.toLowerCase();
+    s[0] = nameLC;
 
-    // V is the only command, with shifted coords parity
-    if (name === 'V') {
-      s[1] -= y;
-      return;
-    }
+    switch (name) {
+      case 'V':
+        // V has shifted coords parity
+        s[1] -= y;
+        return;
 
-    // ARC is: ['A', rx, ry, x-axis-rotation, large-arc-flag, sweep-flag, x, y]
-    // touch x, y only
-    if (name === 'A') {
-      s[6] -= x;
-      s[7] -= y;
-      return;
-    }
+      case 'A':
+        // ARC is: ['A', rx, ry, x-axis-rotation, large-arc-flag, sweep-flag, x, y]
+        // touch x, y only
+        s[6] -= x;
+        s[7] -= y;
+        return;
 
-    for (i = 1; i < s.length; i++) {
-      s[i] -= i % 2 ? x : y; // odd values are X, even - Y
+      default:
+        for (i = 1; i < s.length; i++) {
+          s[i] -= i % 2 ? x : y; // odd values are X, even - Y
+        }
     }
   }, true);