HK T-Rex 550 DFC with IKON FBL, beginner flight

HK T-rex 550 GT DFC with 600 boom. Beginner flight, just flying around, and getting used to it. This is my first "big" heli. throttle: flat 90% YEP120LV ESC, turnigy 600 1330kv motor, 12t pinion, turnigy 6S 5000mAh battery MI-Digital servos KK DFC head turnigy 550mm carbon fiber blades Radio: Spektrum DX6i Headspeed is about 2000rpm.