Wing loading is not a very good indicator of how well an airplane will fly. Wing volume loading gives a much better picture. Example, a 1/2 A model with a 16 oz./Sg.Ft would be a lead sled while a 40 sized model with that wing loading would be a real floater. By using wing volume loading which is defined as (Weight of the model in ounces) divided by (wing area in sq. ft raised to the 1.5 power). A value of 7 to 10 will be a nice flying model regardless of its size. A value less than 7 is a real floater and when you get much above 10, the plane will be hot and require a very high landing speed to prevent stalls.