anchor.diff:               |> Activator.CreateInstance) :?> 'TBuilder
           
           let customBuilder = 
  -            match Assembly.GetAssembly(typeof<'TDestination>) 
  -                  |> GenericBuilder.FindCustomBuilderType(builder.GetType()) with
  +            match Assembly.GetAssembly(typeof<'TDestination>) |> GenericBuilder.FindCustomBuilderType(builder.GetType()) with
               | null -> 
                   (match Assembly.GetEntryAssembly() with
                    | null -> Assembly.GetCallingAssembly()
  
positive.code: [<AbstractClass>]
  type BuilderConfiguration() = 
      static member Configure() = 
          Mapper.Initialize(fun a -> 
              Assembly.GetCallingAssembly().GetTypes()
              |> (Seq.append (Assembly.GetCallingAssembly().GetReferencedAssemblies()
                              |> Seq.map (fun t -> Assembly.Load(t))
  
negative.code:             | customBuilderType -> customBuilderType
          
          match customBuilder with
          | null -> 
              if Mapper.FindTypeMapFor<'TSource, 'TDestination>() = null then Mapper.AddProfile(builder)
              builder
          | _ -> Activator.CreateInstance(customBuilder) :?> 'TBuilder
  