Recently I built a hexacopter and have flown it a total of three times now. Yesterday was the first time I tried the yaw while in flight. When changing the yaw it dramatically changes the elevation, like 30+ feet of increased elevation for a 90 degree change in yaw. This is very scary to me. Where should I look to resolve this so a change in yaw doesn't affect the elevation?
I'm using the Turnigy Talon Hexacopter frame, NTM 35-36a 910 Kv motors, and APC 12x3.8 SF props. The Arducopter firmware is version is 2.7.1 with everything at the defaults except for the roll 'P' parameter for stabilize mode which is tuned to a lower value from the default (0.08) as the roll was very aggressive with the default. Thanks for your help!