I managed to get smooth turning to work by pressing left and right A buttons on the Index Controllers.Get these files and read the instructions. The binding profile is shared via SteamVR workshop.
Please copy and share. Don’t forget to change the weapon angle ingame to 0. Use keyboard cursor keys to change the value and enter to save.
Edit: thanks to u/kylebisme smooth turning works now with the right stick, i changed the link to the updated files