I fly mine to check lateral balance (which wing is heavier). With it trimmed to fly flat upright I roll it inverted. It will lean to the heavier wing. I also do power off slow stalls. The heavy wing falls first. Then if it tends to want to droop a wing I'll add tape on weight till it gets neutral either way. If I'm happy with the results I'll drill off some weight from the heavy wing or add some weight to the light wing. Keep in mind some slight wing dropping will occour due to the torque from the propeller. To verify, I'll also weigh the wings and wing tips to make sure one wing is actually heavier. Note, the motor is set with right thrust offset. That puts a little bit of extra weight to the left side. So I try to mount the rx and sc on the right side to compensate.