Update
UPDATE: I always want to make sure to include as much information as possible in these threads, especially in cases where other forum members have helped me out. 45ACPKING and TacticalTeacher really go out of their way to offer advice and help wherever possible.
So, in the interests of full disclosure, here's what happened after I got the rifle back (because I hate it when these threads have no real conclusion, as this is sure to happen to someone else).
I received the rifle back from North Sylva Co. a division of Parklands Manor, one of the largest firearms distributors in Canada (if not these largest) in mid May. I dealt with George at North Sylva. As I said, they replaced and lapped in a new bolt for the rifle, new op rod, and indexed the barrel. However when I got the rifle back to the range in mid may of 2014, it continuously FTF as a result of very light primer strikes. I took some photos of the cases (after waiting for an agonizingly long period of time, once they were struck but failed to go off), and sent them to George. This was with Chi Com, copper washed, 147gr. FMJ (batches marked 93, 96 and even 89 IIRC). I even tested with some 150gr Federal, and had the same problem. One round in 10 or more, would FTF.
I contacted George, who had already (at NO charge, other than me sending them the rifle) test fired, and repaired the rifle. He was willing to take the rifle back again. I was really impressed that a guy who sells thousands of these things as a wholesaler, and hadn't actually sold me the rifle, was willing to go to this length, over ONE defective unit. Unfortunately, their investigation turned up nothing, at their range, and with their ammo, the rifle functioned normally. I tried different mags, different ammo, even different op rod springs, to no avail.
I contacted George again, and he said there was no point in taking the gun back to their facility for a third time (he was right). Instead, he suggested that I should try new firing pins, and promptly packaged up three firing pins, and sent them out to me via mail. (Again, I was thrilled and impressed by this). George explained to me that firing pins for these rifles are bench fitted, and therefore have varying lengths. This meant that with the new bolt, the original firing pin may not be sufficiently long to strike hard primer, milsurp ammo, consistently.
Upon receiving the firing pins, I marked them all for length (1 through 3), and marked the original firing pin as well. I installed (with some effort, and WITHOUT a bolt tool) the new firing pin (it took me four hours, the first time....) and headed to the range.
That's all it took, the rifle functions flawlessly, and has since eaten hundreds of rounds, of all sorts.
My personal thanks to everyone mentioned herein. This forum is a wonderful resource for us recreational shooters, and I'm really enjoying BOTH of my Norc M14's.