Just wanted to provide an update and also pose a question. At the insistence of the vendor, I sent the BCG out on 1/24. They covered the shipping and UPS showed it was delivered to their location on 1/25. Again, this was solely going to be a spare, so I wasn't in a rush to get the new one back. I didn't even contact them to ask about the status of my replacement; although I was getting to that point, having not heard anything from their end. I figured I'd call today on my way home from work, but my wife texted me in the late morning saying, "That thing from that place showed up." Unsurprisingly, I knew exactly what she meant

So, a week turnaround wasn't bad, especially considering that I wasn't hounding them to move things along.
Aside from the primary extractor problem, the first one also had an "issue" with the ejector roll pin; being mushroomed on one end. The replacement was perfect in that regard. I broke everything down and all looks good. The extractor is nice and snug, with good tension. One interesting difference between the two was the color of the o-ring. The first had like a deep sandy reddish color. The replacement had the traditional black ring that I'm used to seeing. So, maybe they did grab the wrong spring/insert/o-ring combo when putting the first together. Regardless, I'm pleased and grateful they were quick to make it right. As for the rest, it seems like it's well made. Good staking and chrome lining, which were also fine on the first one they sent. The staking was particularly consistent for the sample of two.
Now, I do have a question about the initial cleaning. The BCG was described as being, "packaged dry" and having a "dusty appearance." They weren't lying, and you can make this out a little bit from the photos. Although, while true for the carrier, the bolt clearly had been lubed.
Generally, I clean a new BCG with Gunzilla, lube it up with Slip EWL 2000, and call it a day. However, I've recently seen some comments across the web with people saying they soak new BCGs in motor oil. Anyone do this here? My searches didn't yield any specific threads on that topic. So if you do, what type of oil do you use? What's the benefit over just wiping the whole thing down with CLP and Lube? Do you soak it fully assembled or broken down? Are there any downsides to this method? Being a spare, I'm up for trying something new.
Overall, I'm happy with the outcome. While I'm a bit puzzled how the first BCG made it out with that extractor issue, I feel the mfg went above and beyond by insisting it be replaced. I'll test it for function when the weather allows, and then toss it in the spares bin.
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