diff --git a/htroot/WatchCrawler_p.java b/htroot/WatchCrawler_p.java
index db822e42b..501eb304e 100644
--- a/htroot/WatchCrawler_p.java
+++ b/htroot/WatchCrawler_p.java
@@ -386,12 +386,12 @@ public class WatchCrawler_p {
     private static void setPerformance(plasmaSwitchboard sb, serverObjects post) {
         String crawlingPerformance = post.get("crawlingPerformance","custom");
         long LCbusySleep = Integer.parseInt(sb.getConfig(plasmaSwitchboard.CRAWLJOB_LOCAL_CRAWL_BUSYSLEEP, "100"));
-        int wantedPPM = (int) (60000L / LCbusySleep);
+        int wantedPPM = (LCbusySleep == 0) ? 6000 : (int) (60000L / LCbusySleep);
         try {
-            wantedPPM = Integer.parseInt(post.get("customPPM",Integer.toString(wantedPPM)));
+            wantedPPM = Integer.parseInt(post.get("customPPM", Integer.toString(wantedPPM)));
         } catch (NumberFormatException e) {}
         if (crawlingPerformance.equals("minimum")) wantedPPM = 10;
-        if (crawlingPerformance.equals("maximum")) wantedPPM = 1000;
+        if (crawlingPerformance.equals("maximum")) wantedPPM = 6000;
         sb.setPerformance(wantedPPM);
     }
     
diff --git a/htroot/rssTerminal.html b/htroot/rssTerminal.html
index 72cbe0f60..22e785b9e 100755
--- a/htroot/rssTerminal.html
+++ b/htroot/rssTerminal.html
@@ -122,7 +122,7 @@ function idlepingExec() {
 }
 
 function load() {
-  getRSS("/xml/feed.rss?count=50&set=" + set + "&requestCount=" + requestCount + "&time=" + (new Date()).getTime());
+  getRSS("/xml/feed.rss?count=80&set=" + set + "&requestCount=" + requestCount + "&time=" + (new Date()).getTime());
   requestCount++;
 }
 
diff --git a/source/de/anomic/kelondro/kelondroRowCollection.java b/source/de/anomic/kelondro/kelondroRowCollection.java
index 94523cfce..6e949d5dc 100644
--- a/source/de/anomic/kelondro/kelondroRowCollection.java
+++ b/source/de/anomic/kelondro/kelondroRowCollection.java
@@ -326,11 +326,13 @@ public class kelondroRowCollection {
         assert (!(serverLog.allZero(a, astart, alength))) : "a = " + serverLog.arrayList(a, astart, alength);
         assert (alength > 0);
         assert (astart + alength <= a.length);
+        /*
         if (bugappearance(a, astart, alength)) {
             serverLog.logWarning("RowCollection", "wrong a = " + serverLog.arrayList(a, astart, alength));
             //return false; // TODO: this is temporary; remote peers may still submit bad entries
         }
-        assert (!(bugappearance(a, astart, alength))) : "a = " + serverLog.arrayList(a, astart, alength);
+        */
+        //assert (!(bugappearance(a, astart, alength))) : "a = " + serverLog.arrayList(a, astart, alength);
         int l = Math.min(rowdef.objectsize, Math.min(alength, a.length - astart));
         ensureSize(chunkcount + 1);
         System.arraycopy(a, astart, chunkcache, rowdef.objectsize * chunkcount, l);
@@ -338,7 +340,7 @@ public class kelondroRowCollection {
         this.lastTimeWrote = System.currentTimeMillis();
         return true;
     }
-    
+    /*
     private static boolean bugappearance(byte[] a, int astart, int alength) {
         // check strange appearances of '@[B', which is not a b64-value or any other hash fragment
         if (astart + 3 > alength) return false;
@@ -350,7 +352,8 @@ public class kelondroRowCollection {
         }
         return false;
     }
-
+    */
+    
     public synchronized final void addAllUnique(kelondroRowCollection c) {
         if (c == null) return;
         assert(rowdef.objectsize == c.rowdef.objectsize);
@@ -806,8 +809,8 @@ public class kelondroRowCollection {
         if (i == j) return 0;
         assert (this.rowdef.primaryKeyIndex == 0) : "this.sortColumn = " + this.rowdef.primaryKeyIndex;
         int colstart = (this.rowdef.primaryKeyIndex < 0) ? 0 : this.rowdef.colstart[this.rowdef.primaryKeyIndex];
-        assert (!bugappearance(chunkcache, i * this.rowdef.objectsize + colstart, this.rowdef.primaryKeyLength));
-        assert (!bugappearance(chunkcache, j * this.rowdef.objectsize + colstart, this.rowdef.primaryKeyLength));
+        //assert (!bugappearance(chunkcache, i * this.rowdef.objectsize + colstart, this.rowdef.primaryKeyLength));
+        //assert (!bugappearance(chunkcache, j * this.rowdef.objectsize + colstart, this.rowdef.primaryKeyLength));
         int c = this.rowdef.objectOrder.compare(
                 chunkcache,
                 i * this.rowdef.objectsize + colstart,
@@ -824,7 +827,7 @@ public class kelondroRowCollection {
         assert (this.rowdef.objectOrder instanceof kelondroBase64Order);
         assert (this.rowdef.primaryKeyIndex == 0) : "this.sortColumn = " + this.rowdef.primaryKeyIndex;
         int colstart = (this.rowdef.primaryKeyIndex < 0) ? 0 : this.rowdef.colstart[this.rowdef.primaryKeyIndex];
-        assert (!bugappearance(chunkcache, i * this.rowdef.objectsize + colstart, this.rowdef.primaryKeyLength));
+        //assert (!bugappearance(chunkcache, i * this.rowdef.objectsize + colstart, this.rowdef.primaryKeyLength));
         return ((kelondroBase64Order) this.rowdef.objectOrder).compilePivot(chunkcache, i * this.rowdef.objectsize + colstart, this.rowdef.primaryKeyLength);
     }
     
@@ -842,7 +845,7 @@ public class kelondroRowCollection {
         assert (this.rowdef.objectOrder instanceof kelondroBase64Order);
         assert (this.rowdef.primaryKeyIndex == 0) : "this.sortColumn = " + this.rowdef.primaryKeyIndex;
         int colstart = (this.rowdef.primaryKeyIndex < 0) ? 0 : this.rowdef.colstart[this.rowdef.primaryKeyIndex];
-        assert (!bugappearance(chunkcache, j * this.rowdef.objectsize + colstart, this.rowdef.primaryKeyLength));
+        //assert (!bugappearance(chunkcache, j * this.rowdef.objectsize + colstart, this.rowdef.primaryKeyLength));
         int c = ((kelondroBase64Order) this.rowdef.objectOrder).comparePivot(
         		compiledPivot,
                 chunkcache,
diff --git a/source/de/anomic/plasma/plasmaSwitchboard.java b/source/de/anomic/plasma/plasmaSwitchboard.java
index 51750c8f5..202f75121 100644
--- a/source/de/anomic/plasma/plasmaSwitchboard.java
+++ b/source/de/anomic/plasma/plasmaSwitchboard.java
@@ -2438,7 +2438,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch<plasmaSwitchbo
         // 10   <  wantedPPM <  1000: custom performance
         // 1000 <= wantedPPM        : maximum performance
         if (wantedPPM <= 10) wantedPPM = 10;
-        if (wantedPPM >= 1000) wantedPPM = 1000;
+        if (wantedPPM >= 6000) wantedPPM = 6000;
         int newBusySleep = 60000 / wantedPPM; // for wantedPPM = 10: 6000; for wantedPPM = 1000: 60
 
         serverBusyThread thread;