I just got a used 75 Compact in 9mm made in 2020. I have another one made in 2018. The 2018 has magazines that have no witness holes on the back. They only have holes on the side which are 3 holes I think. On the 2020 model it has witness holes for every round on the rear of the magazine. Both are stamped CZ. Has anyone noticed this ? I'd post pictures but I'm not computer savvy.