How much additional rear toe adjustment is needed?
 

I am messing around with designing/building my own rear toe links and wonder how much additional toe adjustment some of you have required with aggressive camber settings combined with significantly lowering the car? Looking for this info to determine how long to make the adjustment link to facilitate the required length while leaving sufficient length of the rod end in the link.

1/2" of additional adjustment? One?

Thanks in advance. Also any comments/feedback are appreciated.

https://image.ibb.co/fzmA0R/Toe_Link_Assm_Side_View.jpg