Please post up some pictures of your stock and action next time you have the two apart, as I said I need to know more about the bedding system as it is huge part of a rifles overall accuracy equation. It may very well be fine now but will it wear as the round count climbs?
"CZ's developmental testing???" ...seriously?. These are the same guys who screwed the pooch and gave us the recall lol.
Teething problems are to be expected, but if you're calling me emotional then I'm calling you defensive and ball$ deep invested in these new 600's.
They bring some nice features to the table and look interesting, but it is still very early.
As you say "YMMV"
Here you go - the best photos that I can provide you with showing the "Bedding" system for the CZ 600 Trail. Bear in mind that this is a "Mini-Action", designed for .223/5.56mm and 7.62x39mm intermediate cartridges, so "Recoil" is moderate at worst and a polymer "Recoil Lug" may not be required to do much heavy lifting in terms of recoil mitigation. Still, it is indicatve of what you may receive in the iheavier calibre models of CZ 600 as well. The "Mini-Action" only has one row of Lugs on the Bolt (vice 2 rows on the heavier calibres), two Barrel Retention Bolts (vice three Bolts on the heavier calibres), and so on.
You can identify the Polymer Recoil Lug by the partial Feed Ramp that it contains, leading to the Steel Chamber of the Barrel.
The corresponding slot in the steel Receiver for the polymer Recoil Lug/Feed Ramp is identifiable as the deepest slot on the underside of the Receiver billet (the slot in the Trunnion closest to the "5 Nm" marking)
The wear properties of Polymer verrsus Steel over time are a mystery to me, so I cannot say if one is superior to the other under recoil, over the fullness of time. Let's just say for the sake of argument that they are equal. I see no benefit to having the slot in the Stock and the Recoil Lug as part of the Receiver, versus the opposite arrangement as found on the CZ 600 Trail with the Stock's polymer Lug fitting into a corresonding slot in the aluminum underside of the billet Receiver. Both approaches ought to be equally effective.
I do no doubt that CZ Europe did conduct extensive reliability, durabiility and accuracy testing of the CZ 600 line before bringing the new product to market. To not do so would be quite a departure from the norm! The "Recall" was all about the possibility that a non-mechanically-inclined person could reassemble the Quick-Change Barrel incorrectly, resulting in a Firing Out Of Battery condition with the Barrel not fully seated and the Bolt therefore not fully locked into the Barrel Extension. Anyone with an iota of common sense and firearms familiarity would know that the Barrel is not fully seated in the Receiver and would/could correct the situation long before it became a problem. However, based on "that guy", SIG (maybe just SIG USA?) elected to do a recall and make the Barrel Retention Bolts permanently instralled, thus negating the remote potential for a switch-Barrel installation error. It is interesting to note that aside from IRG's CZ USA offering, all CZ Rifles distributed in Canada are manufactured by CZ Europe. My CZ 600 Trail is European, and aside from a dab of red enamel on the head of each Barrel Retention Bolt, there is nothing whatsoever "permanent" about the Barrel installation. Indeed, it is still very much "ready and able" to be disassembled and Barrel-swapped for a different calibre such as .300 Blackout, or (with a Bolt-Head swap), 7.62x39mm fed fromm "STANAG"-style 7.62x39mm magazines. 6.5 Grendel, 6.8 SPC, 6mm ARC, the possibiities and capabilities are many and varied!
Fair enough with the tit-for-tat. I am however, no more emotionally and financially invested in the CZ 600 series than I am in the CZ Bren 2 (spoiler alert - I am a fan), the SAI R18 Mk 2 (also a fan), the Crusader Templar (heavy, but I like it), the Keltec RDB (not bad for a civilian design), or the SIG CROSS (awesome in every regard). Those are my new long-gun additions in the past year that anyone with an RPAL can own. As you can see, I tend to end up liking the firearms that I purchase, mostly because I do my homework before openning my wallet. Sometimes, in the absence of information on a new model I take a bit of a hopeful shot in th dark, but even then my guesses tend to be educated. So, naturally the firearms that I spend my money on tend to work out for their intended purpose(s). Anyhow, that is how I approach things, and judging by your efforts to dig into the bedding system for the new CZ model line, you do the same. No need for insults then - we both do our homework before committing our $$. I'm just ahead of you on this one, and am banking on my belief that CZ's engineers have done their homework in matching the Bedding of the CZ 600 Trail to its intended "rough and tumble" usage. I am not adverse to trying new approaches to old problems, hence my tentative trust in a Polymer Recoil Lug and an aluminum bedding slot. We shall see over the fullness of time, but I am not antiipating any disappointment with the Trail's bedding system, the limitations of which are already anticipated in the factory accuracy warranty of 2 MOA. I blew that benchmark out of the water on my very first outing with repeated .75 MOA, 5-round, no flier groups of Hornady 53 Gr VMax at 100m. So much for the bedding being an issue on the 600 Trail...