Testing Dshot300 on new frame XBee XB-X MK2 - Racerstar RS30Ax4 - Revo - BLHeli_S

Test and tuning flight of my newest frame:

[Top Drone] XBee XB-X MK2 220mm (4mm Replaceable Arms) - https://goo.gl/nYitV5 BetaFlight 310 BB763 8/8/8: betaflight_3.1.0_AIRBOTF4.hex 20$ Banggood REVO clone - https://goo.gl/LTxIc0 Racerstar RS30Ax4 V2 BB2 2-6S 4in1 ESC BLHeli_S 16.5, G_H_30... FW - https://goo.gl/NV24Z4 Parts list: Skyzone FPV googles - http://goo.gl/qAoHNo 4X Racerstar Racing Edition 2205 BR2205 2300KV 2-4S Brushless Motor 2 CW & 2 CCW - https://goo.gl/lLDUQq HS1177 FPV cam - http://goo.gl/63IMzM 2.1mm lens for FPV cam - https://goo.gl/CKukDT Eachine ET526 5.8G 40CH 25mW/200mW/600mW Switchable FPV TX - https://goo.gl/Q1f5nj Skyzone 5.8GHz RHCP 4 Leaf FPV Antenna TX/RX SMA/RP-SMA - https://goo.gl/iw7m0i Kingkong 5x45x3 props - https://goo.gl/MgES2j Now BG sells 4in1 ESC version with 5V 1.5A BEC and with Dshot Blheli_S firmware already onboard - https://goo.gl/NPytul