Don,

Before they eliminated the replica rule in F3D, I used "Mr. Smoothie" as a prototype and it worked out great. (This was 1993, I believe.) Keith Shaw sent me a bunch of good documentation; I'll dig it up and send it to you FWIW.

Dihdral on a midwing is generally not good -- it makes the rudder extremely sensitive & you may get into some nasty Dutch roll action. But the Swee'Pea wing looks pretty flat to me; it may be fine. Just start with less rudder throw rather than more.

Ed,

You guys all laughed at my funky airplane down there at Phoenix, but it ran like a clock & didn't eat any gravel. As a result, while you may have had to replace pistons & sleeves, I still have two pristine Nelson F.I.R.E. .40s sitting at home, with a combined value of at least $30. So nyah!

The Boy of Donna Summer