Interestingly enough,while on this topic, the Australian Transport Safety Bureau (ex BASI) has recomended that "The Gliding Federation of Australia adopt measures to make all aircraft engaged in gliding activities more conspicuous". This came about ,with other recomendations, following an investigation into a fatal accident in South Aus. which involved two gliders and a Pawnee tug.In this case a single seat glider collided with the tow line which a two seater had just released from(because he saw him coming)and both the tug and single seater went in from about 1500 ft.Sadly ,both the tuggie and the glider pilot were killed.A good paint job may well become a reality.