Hi Jason,
Thanks for the help on this - this is really helping me understand the quad config more. To answer your questions…
Which Hawk 5 - this one Emax Hawk 5 FPV Racing Drone (BNF) - Unmanned Tech UK FPV Shop 
- Clean build using the proven Magnum F4 Tower System
- Stackable Omnibus F4 Flight controller
- 30ax 4 DSHOT 600 ESC
- Frsky XM+ receiver (D8 mode)
- 25/200 48ch 5.8ghzVTX
- Vibration Dampening Suspension System
- Built-in OSD with realtime readouts from Battery Voltage, Flight time, to Receiver Signal Strength
- Foxeer Arrow Micro v2 600TVL CCD camera with a sharp wide angle 150 degree lens
- Lightweight Dipole Whip or Circular Polarized RHCP/LHCP Pagoda Il Antenna Included
- Powerful EMAX LS2206 2300kv motors
- Avan Flow 5 inch Propeller designed for control and efficiency
No mods done to it, literally flown it out the box.
I’m wondering if when I flashed Betaflight up to 3.5.1 and then back down to 3.3 whether it lost the settings.
I’ll tweak the gyros and change settings, and flash default pid’s and filter settings.
Will let you know how I get on.
Thanks again 
BTFL_cli_Hawkeye_20180926_073542.zip (5.2 KB)