Ground Control is a piece of sh!t company. I wouldn't trust them to do anything correctly.
I ended up doing all the R&D on their "xi" adjustable camber plates for them. They promised me they had "sold a bunch" of their kits specifically for the xi. Lies. They didn't fit. And ended up just shipping a bunch of parts so I could figure it out myself. I told them I'd like to be compensated for doing their R&D for them (like Dinan does). The next day they increased the price of the xi plates by $100 on their site when they figured out which parts I used and which I sent back.