I own several M70s - all Classic Stainless. I have them in the 270WSM, 300 Win. Mag., .338 Win. Mag., and .375 H&H Mag.
I have had trigger jobs done by a competent gunsmith on all of my M70s. My 338 with PMC 225 grain Barnes X shoots about 1 to 1 1/2" groups at 100 yards - that's great pig medicine - and elk medicine to boot.
I guess you are right. There really hasn't been much talk about the Winnies - but that's only as of late because several discussions have come up in the past.
Now, that said, I would NOT recommend the Black Shadow - that's probably why someone is selling it so cheap. Winchester has two models whose names share a similar theme. One is the Black Shadow, and I forgot the other one. In any event, I have heard quite a few people complaining about these particular models - saying that accuracy was, believe it or not, about 4 to 6 inches at 100 yards. After going back to the Winnie plant a couple of times, Winchester finally gave the guy a new gun - which still never shot better than about 2" at 100.
Personally, I have had such good luck with the M70 Classic Stainless, that I would only recommend that particular model in the Winchester line.
Zachary