I'm so new it's hard to say at this point what my goals are. I'm really just trying to build skill now. I'm flying a SPAD Debonair which is a bit heavy according to the guy whose training me. The logical next step is to go to a flat wing with maybe a thinner profile for more speed and maneuverability, hence the question about foam or balsa building. I'd like to do combat later on and maybe build an aerobat too.