"The V5 no longer has the button to turn off the screen, it does have easy access to the screen controls however so it is easy to just turn the screen brightness all the way down... effectively turning it off."
Navigating to the setup and then lowering screen brightness all the way is no substiture for the screen off button/command. That's a big oversight to lose that simple feature IMO. Do you seriously want to be going into the menu and lowering brightness, then going in and raising it again when you need to do something, then going in and lowering it again? While driving at night?
That feature needs to be brought back asap.