Anybody running 17" Cobra Bullit rims on a Duster

I think the issue maybe that the rotor hat hieghts are all different.I currently run 10 3/4" rotors & 3/8" spacers with 17x8" bullitts. I've recently purchased 11 3/4" rotors which from my measurements are about 3/8" taller hat & i'm hoping will allow me to eliminate the spacer. I hope to install these soon so I will post what my outcome is.I think all rotors are not made equal which is why some people have spacers & some don't. Wracks do you have 10 3/4" rotors or 11 3/4"?

Ted