RE: Tai feathers scale size
OK, my point is still that an RC airplane operates in essence with a "stick-fixed" stability due to the servos holding position, which gives more stability than many of the light aircraft modeled that operate with a floating stick stability. I guess the question is, how much is gained.
As far as the ME-109, Charles Lindbergh flew it before the war and thought very highly of it. Of course he was used to aircraft of that era, as today even the Spirit of St. Louis is considered nearly unflyable.