diff --git a/src/blackmisc/aviation/avionicsbase.h b/src/blackmisc/aviation/avionicsbase.h
index 5fa0e70c6..305c75b01 100644
--- a/src/blackmisc/aviation/avionicsbase.h
+++ b/src/blackmisc/aviation/avionicsbase.h
@@ -32,10 +32,6 @@ namespace BlackMisc
         protected:
             QString m_name; //!< name of the unit
 
-            //! Default constructor
-            //! \todo Remove as part of MS' CValueObject refactoring
-            CAvionicsBase() : m_name("empty") {}
-
             //! \brief Constructor
             CAvionicsBase(const QString &name) : m_name(name) {}
 
diff --git a/src/blackmisc/pq/physicalquantity.cpp b/src/blackmisc/pq/physicalquantity.cpp
index 551b27e5c..b9c77ec02 100644
--- a/src/blackmisc/pq/physicalquantity.cpp
+++ b/src/blackmisc/pq/physicalquantity.cpp
@@ -37,11 +37,6 @@ namespace BlackMisc
         template <class MU, class PQ>
         QString CPhysicalQuantity<MU, PQ>::getUnitSymbol() const { return this->m_unit.getSymbol(true); }
 
-        template <class MU, class PQ>
-        CPhysicalQuantity<MU, PQ>::CPhysicalQuantity() :
-            m_value(0.0), m_unit(MU::nullUnit())
-        { }
-
         template <class MU, class PQ>
         CPhysicalQuantity<MU, PQ>::CPhysicalQuantity(double value, const MU &unit) :
             m_value(unit.isNull() ? 0.0 : value), m_unit(unit)
diff --git a/src/blackmisc/pq/physicalquantity.h b/src/blackmisc/pq/physicalquantity.h
index 4307c629a..d0cbf48f6 100644
--- a/src/blackmisc/pq/physicalquantity.h
+++ b/src/blackmisc/pq/physicalquantity.h
@@ -217,10 +217,6 @@ namespace BlackMisc
             QString convertToQString(bool i18n = false) const;
 
         protected:
-            //! Default constructor
-            //! \todo Remove as part of MS' CValueObject refactoring
-            CPhysicalQuantity();
-
             //! Constructor with double
             CPhysicalQuantity(double value, const MU &unit);
 
diff --git a/src/blackmisc/valueobject.h b/src/blackmisc/valueobject.h
index f5f2ce0fe..11f1b1167 100644
--- a/src/blackmisc/valueobject.h
+++ b/src/blackmisc/valueobject.h
@@ -36,6 +36,21 @@
 namespace BlackMisc
 {
 
+    namespace Private
+    {
+        //! \private SFINAE for CValueObject constructor to avoid being selected as a viable copy constructor.
+        //! @{
+        template <typename...> struct DecayFirst
+        {
+            typedef void type;
+        };
+        template <typename T, typename... Ts> struct DecayFirst<T, Ts...>
+        {
+            typedef typename std::decay<T>::type type;
+        };
+        //! @}
+    }
+
     /*!
      * Default base class for CValueObject.
      */
@@ -138,13 +153,10 @@ namespace BlackMisc
         using Mixin::MetaType<Derived>::registerMetadata;
 
     protected:
-        //! Default constructor.
-        CValueObject() = default;
-
         //! Template constructor, forwards all arguments to base class constructor.
         //! \todo When our compilers support C++11 inheriting constructors, use those instead.
-        template <typename T, typename... Ts, typename = typename std::enable_if<! std::is_same<CValueObject, typename std::decay<T>::type>::value>::type>
-        CValueObject(T &&first, Ts &&... args) : Base(std::forward<T>(first), std::forward<Ts>(args)...) {}
+        template <typename... Ts, typename = typename std::enable_if<! std::is_same<CValueObject, typename Private::DecayFirst<Ts...>::type>::value>::type>
+        CValueObject(Ts &&... args) : Base(std::forward<Ts>(args)...) {}
 
         //! Copy constructor.
         CValueObject(const CValueObject &) = default;