Peters, that's what I like about the Wrist Rest. The small paddle rotates out of the way easily and quickly when you don't need it or you are not using it.
That's why in town or in the twisties, I rotate it out of the way because the brakes are constantly being applied. But on long straights or on the highway, you are much less likely to need the front brake.
For safety's safe, I've trained myself to be able to use the front brake while the paddle is in use. You never know when you have to do emergency braking.