Oh, I'm sure it'll be just fine. A 1/2 degree or so isn't going to make all that much difference on this type of model. If it was something more competition oriented in the finely tuned way that most of the events drive the designs into these days then it would be a much bigger issue.

Nope, no relationship other than perhaps some common blood WAYYYYY back in the past. The spelling with 2 T's isn't that common though so there may be something closer than I think but he's not on my Christmas card list or anything.....

And there ARE a few full sized aircraft that seem to defy logic. I don't know which light plane you're talking about but I do know that the Fokker triplane looked like it had negative decalage. Or perhaps it's the thick flat bottom airfoils that make it just look that way.