I think you do have to think about where you're departing from. If you have an Airfield with all the Approaches then Great. If you don't how exactly do you get from one to another without tracking a radio aid. The route I was talking about was Denham to Southend or Cranfield. Denham has no SID or approaches so therefore going somewhere else to do the approaches does help! I can understand that at an airfield with everything it's easy to miss out the enroute bit. But I think the enroute stage helps alot with trimming and cockpit management of the aircraft.