I use a basic Hans.
I wont race or even test without it.
It will need a little to get used to, but you will appreciate it after a few passes. Depending on the room you have in the car, you might want it on before getting in.
I push mine all the way back as the tethers allow when I am getting strapped in so it's tight and snug when my head is neutral.
I have to bury my head against the cage before the hit like most, but I hardly notice the Hans during the pass until the stripe, and that's where I love it.