diff --git a/include/utils/VectorImpl.h b/include/utils/VectorImpl.h
index b1224c6..c4ec2ff 100644
--- a/include/utils/VectorImpl.h
+++ b/include/utils/VectorImpl.h
@@ -104,6 +104,16 @@
     virtual void            do_splat(void* dest, const void* item, size_t num) const = 0;
     virtual void            do_move_forward(void* dest, const void* from, size_t num) const = 0;
     virtual void            do_move_backward(void* dest, const void* from, size_t num) const = 0;
+
+    // take care of FBC...
+    virtual void            reservedVectorImpl1();
+    virtual void            reservedVectorImpl2();
+    virtual void            reservedVectorImpl3();
+    virtual void            reservedVectorImpl4();
+    virtual void            reservedVectorImpl5();
+    virtual void            reservedVectorImpl6();
+    virtual void            reservedVectorImpl7();
+    virtual void            reservedVectorImpl8();
     
 private:
         void* _grow(size_t where, size_t amount);
@@ -155,6 +165,16 @@
 protected:
     virtual int             do_compare(const void* lhs, const void* rhs) const = 0;
 
+    // take care of FBC...
+    virtual void            reservedSortedVectorImpl1();
+    virtual void            reservedSortedVectorImpl2();
+    virtual void            reservedSortedVectorImpl3();
+    virtual void            reservedSortedVectorImpl4();
+    virtual void            reservedSortedVectorImpl5();
+    virtual void            reservedSortedVectorImpl6();
+    virtual void            reservedSortedVectorImpl7();
+    virtual void            reservedSortedVectorImpl8();
+
 private:
             ssize_t         _indexOrderOf(const void* item, size_t* order = 0) const;