diff --git a/PersonalInfo/PersonalInfo.cs b/PersonalInfo/PersonalInfo.cs
index d623102c8..f44f09010 100644
--- a/PersonalInfo/PersonalInfo.cs
+++ b/PersonalInfo/PersonalInfo.cs
@@ -142,7 +142,7 @@ private static byte[][] splitBytes(byte[] data, int size)
             byte[][] r = new byte[data.Length/size][];
             for (int i = 0; i < data.Length; i += size)
             {
-                r[i] = new byte[size];
+                r[i/size] = new byte[size];
                 Array.Copy(data, i, r[i/size], 0, size);
             }
             return r;
diff --git a/PersonalInfo/PersonalInfoBW.cs b/PersonalInfo/PersonalInfoBW.cs
index 60cffb035..a14469263 100644
--- a/PersonalInfo/PersonalInfoBW.cs
+++ b/PersonalInfo/PersonalInfoBW.cs
@@ -12,6 +12,7 @@ public PersonalInfoBW(byte[] data)
                 return;
             Data = data;
 
+            // Unpack TMHM & Tutors
             TMHM = getBits(Data.Skip(0x28).Take(0x10).ToArray());
             TypeTutors = getBits(Data.Skip(0x38).Take(0x4).ToArray());
         }
diff --git a/PersonalInfo/PersonalInfoXY.cs b/PersonalInfo/PersonalInfoXY.cs
index 2857fcfe1..b662245d0 100644
--- a/PersonalInfo/PersonalInfoXY.cs
+++ b/PersonalInfo/PersonalInfoXY.cs
@@ -1,5 +1,4 @@
-using System;
-using System.Linq;
+using System.Linq;
 
 namespace PKHeX
 {
@@ -12,6 +11,7 @@ public PersonalInfoXY(byte[] data)
                 return;
             Data = data;
 
+            // Unpack TMHM & Tutors
             TMHM = getBits(Data.Skip(0x28).Take(0x10).ToArray());
             TypeTutors = getBits(Data.Skip(0x38).Take(0x4).ToArray());
             // 0x3C-0x40 unknown