Also, especially in that size (when scale) some of the designs get really squirrely. Have you ever had a Fokker DR 1 to fly regularly? I have had 3 and currently have 1. They are a beast at times. I am told the 1/3rd scale handle great. That is why you almost always see the nose lengthened and the landing gear changed. Even with the lighter loaded WW1 models, Reynolds numbers do come into play. The airplanes were designed to fly in the scale that they were, full. They were not designed to fly at 1/6th the size. Hence the changes.
Scale is a pursuit that is personal. You have to go as far as you need to, to satisfy yourself ( or your documents for competition). If you expect a manufacturer to just offer exact scale, you will most certainly be disappointed. I am in the final throws of my latest scale creation. I built it from plans. The outline is very scale, and matches my outline perfectly. But I had to do all of the work to make it look like the real aircraft.
I know we always end up talking about BUSA, mainly because they are the most popular manufacturer. But they are a great starting point. It is very easy to modify them to be very scale if you are so inclined.
My 1/5th Andersen TA 152. About to shoot paint, after a few rivets are added.
