If your buying a .375 just bed it and check the feeding is right....you can add bells and whistles if you wish that is personal taste and $$

If your getting a .416 or .458 lott get it bedded and add a couple of cross bolts for and aft the mag box, once agin get the feeding checked and add bells and whistles as desired.

I own a .375, .458 lott (was a .458 win mag), .416 Rigby and 9.3x62 in the larger cals, and all are fine shooters and great value for money.

Gentlemen, Have read bits and pieces in this forum on slight problems with CZ's, and am seeking your advice. I am considering a 550 Safari Mag., and would like to hear some input from you CZ owners as to what needs attention in order to make the rifle truely dependable as a DGR. Thanks, George

Do a search on this site and you'll find a wealth of info.
Charlie