So using the above ..explain CZ VZ hick-ups .... Another AK design .. Nothing is known for sure till it has been experienced .. Some previous posts about FF problems with the first go around .. So how about ... " so maybe ".
I only jump in as I have had experience tinkering with a VZ 58 .. Never touched a t97 .. Never saw the inside or the design, but I should never of had to add a washer to the inside of a VZ58 ( .223 ) in order to get it to not " hang fire " .. It was redesigned military ,converted to semi-auto ..correct?