I got an email from PMG today. They say the current L bracket does not fit the Z II models. Here is the website link confirming their statement. The say the lip at the rear needs to be removed.
https://www.promediagear.com/PLNZ67...Z6-and-Z7-Mark-II-Arca-Swiss-type_p_1484.html
You can skip ahead to about the 5:10 point in the video to see the problem they find.
Very interesting and disappointing. I installed my PMG L-Bracket and now noticed it's not a perfect fit. The L part is also not perfectly 90 when installed.
I guess I'm going to have to wait for that new plate and just use the PMG Hybrid plate in the mean time. Thanks for the heads up.