Official 360 controller Common Ground

Ello folks,

As you might know I’m currently working on my custom stick. And I’ve been searching but I could not find a definite answer to my problem. I’m going to use the PCB of a wired official xbox 360 controller. However I saw on the website of slagcoin that there are appareantly an early and a late version.

I happen to have the early version, however the website does not give me an answer to whether this pcb is common ground or non-common ground.

Could anyone give me a final answer to this question?

erm its pretty easy, early version is not common ground and late is common ground