Hi rollys,
Thanks for the video, I felt like I was sitting on top of my Ranger! 
Your twisting didn’t look too bad and it flew fine. Mine has seen several upgrades since I last posted on RCG. I have installed newer v3.8.0 firmware with a complete parameter reset since I had very odd results in MANUAL mode after going to v.3.8 and back to v3.6 without a parameter reset. It seems fine now and ready to retest once I upgrade my forward flight motor.
Read my Ranger thread here in the Plane v3.8.0 forum for motor upgrade details. My last testing with a normal wing set showed that I was using 70% throttle with the stock setup on 4s. I will install my new motor and ESC before testing transitions.
What is your throttle set at when cruising around in forward flight? Are you still using a 4s Lipo with the stock motor/ESC ?
Cheers!