thank you, I have built my first goblin 570 KS edition 3 head, no esc, motor or servos brought yet unsure which ones to get, shops not really helpful by me, I was looking at the QUANTUM Brushless Heli Motor (4120- 1200KV) motor only for the fact I don't have to cut the shaft, not sure about fbl unit, servos or receiver, it will be programmed to a dx9, im not a hard shake it to bits flyer