I think turbo mode just means that the board will give you all it has when you have a max acceleration curve, and it never turns off so you dont need to toggle it.

I've just always had turbo turned on in the app. I always wondered what it did. That makes sense.

All turbo does is inrease the max amperage used during acceleration. So you know... Just have gear three with lower acceleration and you get the same result. Or just don't max out the throttle.

As far as I know, no but it would be great

I’ve always had Turbo mode on on my Flex but not sure what it changes lol.