ben I have both a manner's & boyds
2 boyds 1 for a savage mkii, 1 for a cz 455, I was not worried about perfect fit out of the box, as I was going to bed an pillar both
also did custom paint job on both, an yes they needed to be opened a little, no big problem, with a socket an sand paper/\ about 10 min of work was all. both rifles shot great. just shot the MKII Saturday, with some 922a fed ammo, very happy,
as for the manners you could drop in, but as dj said it also needed bedding to get action to set perfect.
which stock would I buy, if price not a bigy go manners, but with a little do it youself, go Boyds, both stocks, prone, or off bench fit me the same, all but the grip, manners fell cooler.but as most know not going to grip my stock much if I am shooting for groups,
we have more Boyds stocked CZ's then maybe 1 manners stock at the TSC
ben will be looking forward to your mini chassie updates, also have a few that want bolt knob work but will be late October before TSC over
good luck
PS DJ trigger guard bad a$$
yo