diff --git a/apps/i2psnark/java/src/org/klomp/snark/PeerCheckerTask.java b/apps/i2psnark/java/src/org/klomp/snark/PeerCheckerTask.java
index 27ede5330c..7d7e9b054a 100644
--- a/apps/i2psnark/java/src/org/klomp/snark/PeerCheckerTask.java
+++ b/apps/i2psnark/java/src/org/klomp/snark/PeerCheckerTask.java
@@ -26,6 +26,8 @@ import java.util.List;
 import java.util.Random;
 import java.util.TimerTask;
 
+import net.i2p.I2PAppContext;
+
 /**
  * TimerTask that checks for good/bad up/downloader. Works together
  * with the PeerCoordinator to select which Peers get (un)choked.
@@ -43,7 +45,7 @@ class PeerCheckerTask extends TimerTask
     this.coordinator = coordinator;
   }
 
-  private Random random = new Random();
+  private static final Random random = I2PAppContext.getGlobalContext().random();
 
   public void run()
   {
@@ -113,10 +115,10 @@ class PeerCheckerTask extends TimerTask
                         + " C: " + peer.isChoked(),
                         Snark.DEBUG);
 
-            // Choke half of them rather than all so it isn't so drastic...
+            // Choke a third of them rather than all so it isn't so drastic...
             // unless this torrent is over the limit all by itself.
             boolean overBWLimitChoke = upload > 0 &&
-                                       ((overBWLimit && random.nextBoolean()) ||
+                                       ((overBWLimit && random.nextInt(3) == 0) ||
                                         (coordinator.overUpBWLimit(uploaded)));
 
             // If we are at our max uploaders and we have lots of other
diff --git a/apps/i2psnark/java/src/org/klomp/snark/PeerCoordinator.java b/apps/i2psnark/java/src/org/klomp/snark/PeerCoordinator.java
index bf869f4129..53dde145c7 100644
--- a/apps/i2psnark/java/src/org/klomp/snark/PeerCoordinator.java
+++ b/apps/i2psnark/java/src/org/klomp/snark/PeerCoordinator.java
@@ -97,7 +97,7 @@ public class PeerCoordinator implements PeerListener
     // Install a timer to check the uploaders.
     // Randomize the first start time so multiple tasks are spread out,
     // this will help the behavior with global limits
-    Random r = new Random();
+    Random r = I2PAppContext.getGlobalContext().random();
     timer.schedule(new PeerCheckerTask(_util, this), (CHECK_PERIOD / 2) + r.nextInt((int) CHECK_PERIOD), CHECK_PERIOD);
   }
   
diff --git a/apps/i2psnark/java/src/org/klomp/snark/Snark.java b/apps/i2psnark/java/src/org/klomp/snark/Snark.java
index 5b7d32d0e1..e25ff1fe32 100644
--- a/apps/i2psnark/java/src/org/klomp/snark/Snark.java
+++ b/apps/i2psnark/java/src/org/klomp/snark/Snark.java
@@ -321,7 +321,7 @@ public class Snark
     // sixteen random bytes.
     byte snark = (((3 + 7 + 10) * (1000 - 8)) / 992) - 17;
     id = new byte[20];
-    Random random = new Random();
+    Random random = I2PAppContext.getGlobalContext().random();
     int i;
     for (i = 0; i < 9; i++)
       id[i] = 0;
diff --git a/apps/i2psnark/java/src/org/klomp/snark/Storage.java b/apps/i2psnark/java/src/org/klomp/snark/Storage.java
index 3e341cc09d..4eeb21f6df 100644
--- a/apps/i2psnark/java/src/org/klomp/snark/Storage.java
+++ b/apps/i2psnark/java/src/org/klomp/snark/Storage.java
@@ -304,7 +304,7 @@ public class Storage
               int pc = (int) (bytes / psz);
               long rv = 0;
               if (!bitfield.get(pc))
-                  rv = psz - (bytes % psz);
+                  rv = Math.min(psz - (start % psz), lengths[i]);
               for (int j = pc + 1; j * psz < end; j++) {
                   if (!bitfield.get(j)) {
                       if ((j+1)*psz < end)
diff --git a/apps/i2psnark/java/src/org/klomp/snark/TrackerClient.java b/apps/i2psnark/java/src/org/klomp/snark/TrackerClient.java
index 8822bba931..065e708801 100644
--- a/apps/i2psnark/java/src/org/klomp/snark/TrackerClient.java
+++ b/apps/i2psnark/java/src/org/klomp/snark/TrackerClient.java
@@ -183,7 +183,7 @@ public class TrackerClient extends I2PAppThread
         boolean runStarted = false;
         boolean firstTime = true;
         int consecutiveFails = 0;
-        Random r = new Random();
+        Random r = I2PAppContext.getGlobalContext().random();
         while(!stop)
           {
             try