Does this whole alignment issue seem like a legitimate gripe, or, is such really nothing to be concerned about?
I’ll also ask the LBS to ask Felt’s rep to indicate what exactly does the 3mm rule include, and how do we measure such, just the same. And I'll finish buiding it up and do a test ride, too.
Absolutely! We spend a lot of money on frames/bicycles, and have lots of pride on how they look, and how others view it. If it doesn't look right, it ain't right!
You might not notice anything in the ride quality, and it may well be within Felt specs, but it will always be apparent that the wheel isn't sitting right in the frame. You know it- others will see it. One way or the other you'll pay for this everytime you drag it out for a ride.
I'd bet anything that the LBS owner, or the Felt rep would not accept this of their personal ride, and you shouldn't be expected to either. I don't care if it is within specs. That should be the deciding factor for a return or a replacement. Were I Felt I'd want my stuff to look right. If it doesn't it's outta here!
Those of us here who build our own frames, be it for hobby or livelyhood, are not allowed these kinds of discrepancies. It reflects on our pride and skills as a builders. I'd like to think Felt has some pride as well, and cares about their reputations, even if it within their "loose" specs.
CF construction may be prone to take a "set" as it cures, but if it doesn't set right- it ain't right! Ask the Felt rep if he'd accept this, and if his personal ride suffers from the same problem. If the answer is no... that's reason enough for an adjustment.