Pointless firmware for my version of the wheel.
Stick to the Custom Firmware version!

I use Bluefy for iOS and connect with EUC Dash.
Bluefy is a free bluetooth enabled browser.
EUC Dash is here:
https://freestyl3r.github.io/euc-dash...
Connect and then choose speed mode PWM tiltback.
Don't go higher than 80% PWM unless you are armored to hell and beyond and willing to take risks.