My 2 Cents
Get the lithgow
I have seen and shot many and they all shot
I am a CZ455 Tacticool owner and i got one of the bad ones, wouldnt shoot 30mm groups at 50m with any ammo
Done the
Lowey products trigger spring (great product) Got the trigger to 8oz safe
I made and Installed my own Aluminium pillars
than done a full Devcon bed
than took it to the rang on the windiest day i have ever shot there and shot this with SK match red box
Im guessing with no shift winds and finding what it likes i will shoot tits
but its been a long road
so yeh unless you like to tinker get the lithgow IMO