Rear camber after lowering? MK3

[RAF_S197]

After installing Eibach Sportline springs on my 2013 I have a feeling I won't e able to get the rear alignment to stock spec.
What are my options? Do they make a camber bolt kit for the 2012/2013 and will it get me to spec or do I need to go with the whole adjustable camber arm?

[SkyPilot]

Camber bolts (according to the c-f-m website) are the same for all model years.

http://focus.c-f-m.com/suspension-chassis.aspx

The bolts only provide 1 degree of adjustment. depending on how low you went, it may or may not be enough. Camber arms would be the right way to go if you can afford them.

[RAF_S197]

Thanks.
How do the camber bolts work exactly?