This is why I really love my Thrustermaster T Flight Hotas X. There's a solid click in the exact middle to make it really easy to hit that center blue zone spot.
Oh yes I made a lot of use for that, mainly for exploring though when in supercruise and I started to get close to a planet. I've had to disable that slider though because it interferes with having the hat on my second joystick which I also use as a throttle control in combat.