diff --git a/RTCP/Cobalt/CoInterface/src/CorrelatedData.cc b/RTCP/Cobalt/CoInterface/src/CorrelatedData.cc
index c207e63c26040dd8a44573226f287f78e734cd77..093e8638049f0825dfb2baa3eea02095a2dad62b 100644
--- a/RTCP/Cobalt/CoInterface/src/CorrelatedData.cc
+++ b/RTCP/Cobalt/CoInterface/src/CorrelatedData.cc
@@ -75,7 +75,8 @@ namespace LOFAR
                    [NR_POLARIZATIONS],
                    itsAlignment,
                    allocator,
-                   true),
+                   true,
+                   false),
       itsNrBytesPerNrValidSamples(nrBytesPerNrValidSamples(maxNrValidSamples))
     {
       init(nrChannels, allocator);
@@ -130,26 +131,19 @@ namespace LOFAR
       case 4:
         itsNrValidSamples4.resize(
           boost::extents[itsNrBaselines][nrChannels],
-          itsAlignment, allocator, true);
+          itsAlignment, allocator, true, false);
         break;
       case 2: 
         itsNrValidSamples2.resize(
           boost::extents[itsNrBaselines][nrChannels],
-          itsAlignment, allocator, true);
+          itsAlignment, allocator, true, false);
         break;
       case 1:
         itsNrValidSamples1.resize(
           boost::extents[itsNrBaselines][nrChannels],
-          itsAlignment, allocator, true);
+          itsAlignment, allocator, true, false);
         break;
       }
-
-      // zero weights
-      for (size_t bl = 0; bl < itsNrBaselines; ++bl) {
-        for (size_t ch = 0; ch < nrChannels; ++ch) {
-          setNrValidSamples(bl, ch, 0);
-        }
-      }
     }