A little tweak. A new flight.
Observe your flight, then change just one thing.
Nose-diving?
Use a level, gentle release and check both wings match. If it still dives, try a tiny matching upward bend at the back of each wing. Test again before making a larger change.
Up, then down?
Try a flatter, gentler throw. If you bent the rear edges upward, flatten them a little. A hard upward throw can hide how the plane glides.
Always turning?
View the plane from the nose. Check that the wing heights, angles, and creases match. Straighten a bent tip. If it still turns, test indoors where wind is not changing between throws.
Make a fair comparison
Use the same plane, paper, place, and gentle launch. Change only one thing and repeat three throws. Flight results vary; we do not promise a particular distance.