locking alignment cams for Chevy

[booster]

I know that in the past at least one person has installed these, I think Jojobanfanci and maybe others.


My question is how you can be able to set them in a Chevy (2003 and up) once the spring is in place?


I just got a set of these as I am in the process of modifying the lower control arm mounting location to get more + caster and can't see how I would be able to get to and adjust the rear upper control mount cam. I have a loose pin so I figured I would try to prevent that in the future by replacing them with the tighter version.



The bolt goes from inside the spring tower and is very close to the spring.


The factory cams have a flat on the bolt and on the cams so both cams turn with the bolt so you can just turn that bolt.


The adjustable cams don't have the flat and you have to lift the cam off the pin and then turn it, with it all right up against the spring, with the wheel on while on the alignment turntables.



It looks like would be very close to impossible to do easily and consistently and get the same change on each of the cams when they all move independently.


Did your alignment guy have any complaints on this?