CC Plates w/ Eibach Pro-kit?

I have a 2001 GT and will be installing the Eibach Pro-Kit. I have read that this kit will likely not need cc plates. However, a few months ago I had my alignment done and the shop was not able to get the right side to align perfectly for some reason. I even replaced the right strut bc they told me it was bent, yet they still could not get it perfect and since then, the car pulls slightly to the right.

Therefore, is it likely I will definitely need the cc plates once I install the springs, or will the springs make my situation worse?

I don't know of any existing problems with my stock camber setup. And my tires were brand new when they did the alignment (about 3 months ago). It sounds like I should get CC plates(MM sounds like the best ones). Hopefully, with the cc plates, the alignment shop will be able to dial in perfectly. I also might try a different shop to do the work. Thanks.