Wingtip Sighting Triangle for Aeros

[undertheweather]

I own a Cap 10b, and am looking for a wingtip sighting triangle to help me with my aerobatics. Does anyone know where I can get one specific to the Cap 10b, and at what cost?

Also, what hurdles to I have to jump over with respect to the CAA? Can I just put one on, or do I need CAA approval?

[camaro]

Undertheweather

Try Rob Millinship at Aerographic (http://www.aerographic.com), he makes sighting devices for Pitts aircraft and might be able to sort one for the Cap10.