They all smooth out with play and become more reliable. They are all different. Some more responsive than others, some all of a sudden grab at unwanted times and some throw, return and regen more smoothly than others.
I’m not making it sound good, but really, whatever you get it will certainly play good enough for modern 0A.
They’re CNC machined and cheap so, they probably don’t get the same level of testing and attention to detail as hand made ones.