Hmmmm, every CZ we have, the wife and I have, all the new ones have had to be broken in and torque tested. Also, triggers have had to be adjusted and or worked on. Don't get me wrong we love CZ's, but they are not super accurate out of the box. Then you better plan on ammo testing, we usually test between 25-30 different brands and lots. The wife's new VMT MTR has needed 3 separate range trips and 2 different benchrest matches to finally get the break in done, find the torque sweet spot. She will now be competitive with hew new B-day present.
I, on the other hand, decided that I wanted to acquire and shoot a new Tikka T1x, that i picked up over the winter. it was the easiest rifle I have ever had to prep for benchrest shooting. Virtually no break-in. Adjusted trigger with 1 screw down to about 1 and 1/4 pounds, torqued down on the metal pillars built onto the stock, Have just recently removed the plastic shim in the barrel channel to get a true free floated barrel. The better pistol grip, and that it. Mounted a Sightron scope and went shooting at our club benchrest matches.
So far have won both matches the rifle has shot in, with that barrel shim in place, So I will be curious to find out if it can still win with that shim gone. This is just one persons experience with the same rifles being talked about.
YMMV
,