Hello! Just own your headset. I have the same problem, only “Normal 150 Degree FOV”. Is there any info when we get update for 170 FOV? Can’t wait to test it
Welcome to the OpenMR Forum & Congratulations on purchasing a 5kSuper!
Pimax team is currently looking into the Large FoV mode at 120hz iirc.
If your using FoV modes higher than 120 the FoV Max is reduced.
Atm 90hz Large is working. With Luck maybe next Pitool with Firmware may fix Large 120hz mode.
There is no Large fov in 90hz too. But anyway i want large fov for 120hz.
Are you using PE or launching from pitool?
I use both the latest versions. And both don’t have this option 
Pittol v1.0.1.270 and Firmware Version: 271. Pimax VR Experience version 0.86.0.0