OMG... Took my Phantom out early this morning as the sun was just coming up because I've been itching to try manual (Kamikaze) mode but the weather has not been good. (Before I left I changed failsafe to manual in the assistant.) Anyway, went to my favorite testing ground, a huge open grassed area with nothing to crash into, except the ground. Flew around in ATTI mode for a few minutes trying to settle the nerves, took her up to about 150ft, said a prayer and flipped the switch down.... Immediately discovered the Phantom becomes an unmanned brick!? It was dropping at an alarming rate so I hit the throttle and it shot up at an angle, tried to compensate and it's going all over the place at crazy angles! For some reason I started laughing my head off which didn't help much...So it began to get a bit crazy so flipped back to GPS and it settled down. Got it back up over 150ft and went Kamikaze mode again.Tried flying around a bit... OMG it's completely nuts! Had no idea how reliant I had become on GPS. Even ATTI mode is a breeze compared to manual. Needless to say, I quickly became disinterested in Kamikaze mode.... Well that was my big adventure. I intend to use the more sedate NAZA GPS or ATTI modes from now on... It was funny though!