Here's a view of my AA fleet.

On the left is the blue 'glider. This is my first AA and has plenty of time on it. I moved the battery forward and you can see it sticking through the nose. I also angled the wing end sections down to more of a gull wing configuration. This is an attempt to make the plane easier to control in wind and in turns by keeping the wing tip down. It wants to climb like a homesick angel and is easy to lose control of in any wind. Plus I soldered an antenna extension.

The orange C channel is another experiment. I removed the lower wing and began to slice off the ends of the upper wing. The goal is speed. This one is at least twice as fast as stock. I wanted to see how much wing can be removed and still fly. The price is stability in turns. In order to not lose altitude in turns I have to pulse the control, a blip a second to turn without diving. This is an advantage at altitude, because I can turn into a death spiral, lose altitude and recover to level flight in a flash.

The red B channel is stock. On all the planes I loosened the tail / stabilizer, rotate about 3 degrees aftward and tape into place. This reduces porposing. The stock planes are best for tight spaces and for turns without altitude loss.

Also in the photo is a Picco Z. Fun, but tough to control.

Kevin