I have installed pro armor nerf bars and I love them, thing is with boots on it is tough to get under the shifter. I have not tried moving it yet, can it be done? I'm hoping it is an even star so that i can remove lock screw turn up one tooth and re-install. Has anyone tried? I'm just hoping it is not a key way that that shifter only fits onto one line of teeth and I cant raise it at all. any input before I try so I know what to expect? thanks