MK4 3 link with standard shocks set up question

[magicmarto]

Hi Guys,
I am about to do a first alignment on my MK4 this weekend. I have the 3 link rear end with standard FFR shocks and springs.
What have you set your spring collars at for a beginning set up? How many inches from where the black sleeve starts and the spring collar is set?
Running a Coyote 5.0 and TKO600

is there any adjustment to the rear axel to avoid "crabbing" or dog walking to one side?
My car has the aluminum non adjustable lower control arm-

Thanks
Martin