diff --git a/module/core/former/src/vector.rs b/module/core/former/src/vector.rs
index 585157674d..81e35bd96d 100644
--- a/module/core/former/src/vector.rs
+++ b/module/core/former/src/vector.rs
@@ -28,14 +28,12 @@ impl< E > VectorLike< E > for Vec< E >
 impl< E > Storage
 for Vec< E >
 {
-  // type Definition = VectorDefinition< E >;
   type Formed = Vec< E >;
 }
 
 impl< E > StoragePerform
 for Vec< E >
 {
-  // fn preform( self ) -> < < Self as Storage >::Definition as FormerDefinition >::Formed
   fn preform( self ) -> Self::Formed
   {
     self
@@ -45,14 +43,14 @@ for Vec< E >
 // = definition
 
 #[ derive( Debug ) ]
-pub struct VectorDefinitionTypes< E, Context = (), Formed = Vec< E > >
-where
-  Self : FormerDefinition,
+pub struct VectorDefinition< E, Context = (), Formed = Vec< E >, End = ReturnStorage >
+// where
+  // Self : FormerDefinition,
 {
-  _phantom : core::marker::PhantomData< ( E, Context, Formed ) >,
+  _phantom : core::marker::PhantomData< ( E, Context, Formed, End ) >,
 }
 
-impl< E, Context, Formed > VectorDefinitionTypes< E, Context, Formed >
+impl< E, Context, Formed > VectorDefinition< E, Context, Formed >
 {
   pub fn new() -> Self
   {
@@ -61,37 +59,37 @@ impl< E, Context, Formed > VectorDefinitionTypes< E, Context, Formed >
 }
 
 impl< E, Context, Formed > FormerDefinition
-for VectorDefinitionTypes< E, Context, Formed >
+for VectorDefinition< E, Context, Formed >
 {
   type Storage = Vec< E >;
   type Formed = Formed;
   type Context = Context;
 }
 
-#[ derive( Debug ) ]
-pub struct VectorDefinition< E, Context = (), Formed = Vec< E >, End = ReturnStorage >
-where
-  End : FormingEnd< VectorDefinitionTypes< E, Context, Formed > >,
-{
-  _phantom : core::marker::PhantomData< ( E, Context, Formed, End ) >,
-}
-
-impl< E, Context, Formed, End > VectorDefinition< E, Context, Formed, End >
-where
-  End : FormingEnd< VectorDefinitionTypes< E, Context, Formed > >,
-{
-  pub fn new() -> Self
-  {
-    Self { _phantom : core::marker::PhantomData }
-  }
-}
+// #[ derive( Debug ) ]
+// pub struct VectorDefinition< E, Context = (), Formed = Vec< E >, End = ReturnStorage >
+// where
+//   End : FormingEnd< VectorDefinition< E, Context, Formed > >,
+// {
+//   _phantom : core::marker::PhantomData< ( E, Context, Formed, End ) >,
+// }
+
+// impl< E, Context, Formed, End > VectorDefinition< E, Context, Formed, End >
+// where
+//   End : FormingEnd< VectorDefinition< E, Context, Formed > >,
+// {
+//   pub fn new() -> Self
+//   {
+//     Self { _phantom : core::marker::PhantomData }
+//   }
+// }
 
 impl< E, Context, Formed, End > FormerDefinition2
 for VectorDefinition< E, Context, Formed, End >
 where
-  End : FormingEnd< VectorDefinitionTypes< E, Context, Formed > >,
+  End : FormingEnd< VectorDefinition< E, Context, Formed > >,
 {
-  type Definition = VectorDefinitionTypes< E, Context, Formed >;
+  type Definition = VectorDefinition< E, Context, Formed >;
   type End = End;
 }
 
diff --git a/module/core/former/tests/inc/former_tests/container_former_vec.rs b/module/core/former/tests/inc/former_tests/container_former_vec.rs
index 754b301026..cf4a77df49 100644
--- a/module/core/former/tests/inc/former_tests/container_former_vec.rs
+++ b/module/core/former/tests/inc/former_tests/container_former_vec.rs
@@ -28,9 +28,9 @@ fn definitions()
   {
   }
 
-  f1( former::VectorDefinitionTypes::< String, () >::new() );
+  f1( former::VectorDefinition::< String, () >::new() );
   f2( former::VectorDefinition::< String, (), Vec< String >, the_module::ReturnStorage >::new() );
-  f3::< former::VectorDefinitionTypes< String, () >, the_module::ReturnStorage >( the_module::ReturnStorage );
+  f3::< former::VectorDefinition< String, () >, the_module::ReturnStorage >( the_module::ReturnStorage );
   f3::< < former::VectorDefinition< String, (), Vec< String >, the_module::ReturnStorage > as the_module::FormerDefinition2 >::Definition, the_module::ReturnStorage >( the_module::ReturnStorage );
 
 }
@@ -143,22 +143,6 @@ fn replace()
 fn begin_and_custom_end()
 {
 
-  // xxx2 : continue
-  // struct Return13;
-  // impl former::FormerDefinition for Return13
-  // {
-  //   type Storage = Vec< String >;
-  //   type Formed = i32;
-  //   type Context = ();
-  // }
-//
-//   fn return_13( _storage : Vec< String >, _context : Option< () > ) -> i32
-//   {
-//     13
-//   }
-//
-//   let end_wrapper : the_module::FormingEndWrapper< Return13 > = the_module::FormingEndWrapper::new( return_13 );
-
   // xxx : make example with that
 
   // basic case
@@ -199,3 +183,38 @@ fn begin_and_custom_end()
 }
 
 //
+
+#[ test ]
+fn custom_definition()
+{
+
+  // xxx2 : continue
+  struct Return13;
+  impl former::FormerDefinition for Return13
+  {
+    type Storage = Vec< String >;
+    type Formed = i32;
+    type Context = ();
+  }
+
+  // impl former::FormerDefinition2 for Return13
+  // {
+  //   type Definition = Return13;
+  //   type End = former::ReturnStorage;
+  // }
+
+  fn return_13( _storage : Vec< String >, _context : Option< () > ) -> i32
+  {
+    13
+  }
+
+  let end_wrapper : the_module::FormingEndWrapper< Return13 > = the_module::FormingEndWrapper::new( return_13 );
+
+  //
+
+  // let got = ContainerSubformer::< E, VectorDefinition< E, Context, Formed, End > >
+
+
+}
+
+//