If I could type proper I would have typed 1961 MAN. Again Ed uses the 'we' a lot, seems the gang was modifying the Astro to 'Orion' even back then. And yes Cees, Friese ailerons are statically balanced, and some are even differential. The idea was to increase the drag of the 'up' going aileron to help balance the aileron drag (adverse yaw) prevalent back in them days (1930's). Didn't take long to realise that the added complication just wasn't needed with R/C models and the strip aileron idea was born. By the way, Ed himself attributes the strip idea to Hal DeBolt in the Taurus article. Tom Brett must have been an early convert as his Nimbus 2 had them, and the Nimbus plan was published in 1961, same year as Orion.
Evan.