mini cp full brushless

Mini cp that changed to brushless motor had been derelict for a while.

Because the tail is unstable and  motor stops suddenly.

I've tried various method to improve.
As a result The symptoms is improved, and It got to fly straight somehow.

Simple two measures below,

1. To change BLHELI tail configuration.

2. To increase capacity of the battery prevent from cutting Motor.

I got to fly finally some decent mini cp.

Photo taken for the time being.

Internal structure

Specs

Genuine walkera receiver (firmware version up already)

main motor: 14000kv brushless
main esc: plush6A (firmware BLHELI 9.2)

tail motor: 12000kv brushless
tail esc: plush6A (firmware BLHELI 9.2)

2mm solid carbon angle rod 2cm tail boom extension
Carbon-made tail fin micro helicopter club
(With 7mmϕ tail motor housing)

Genuine main rotor walkera
Genuine tail rotor walkera

Genuine spindle shaft walkera (0.5mm Cut)

Nanotech 2S 300mah battery

Paper-canopy canopy that designed by Mr.kanta

Radio is DEVO8S (firmware Rewrite deviation2.23)

It's nearly beyond recognition.

Unfortunately the weather is cloudy in the high winds, But I tried to do Pirouette-Flip and do the retreat Upside down turning flight. During flight tail is stable.
It is ugly because I have no technique, video shows the aircraft flying straight somehow.