J-3 Cub, which kit?
kirtley:
The Sig is more scale, the Goldberg is far the easier build.
Do you want scale, or do you want 1/3 to 1/2 the building time?
Flying? A Cub is a Cub is a Cub is a Cub is a Cub is a Cub...
Unless you clip the wing, or...
Bill.