I have been through a flightstar-40 trainer (DX5 power switch killed it), and am currently flying a Fokker D-VII and a kyosho 50 spitfire.
This plane is for relaxing, beating on, general un-dumb-thumbing, and such. When I start doing something stupid I figure I can get more practice in on the kadet than either of the others.
The other trainer had 6° dihedral and I didn't have a problem keeping it upside down, or my champ (but 3ch rudder action is reversed tough to go back and forth), my only reason to think about less dihedral is for rudder practice that will be more like the spitfire, although the fokker is pretty good for that as it has minimal dihedral (and it slows as fast as the spit when the spit flaps are down!).
Building the wing isn't as lengthy as I thought, how hard is getting just the kit parts for the wing (or an ARF wing?). Might be nice to have a sport wing and a trainer wing.
I'm going to keep the dowels for rubber-banding a wing on so I can easily put on other wings.