I called S&W yesterday and got a shipping label. The fellow that I spoke with said that several things could cause the issue, and none are serious, or expensive. Also the work should be 100% covered under warranty. So, now my only issue is finding an appropriate sized box to ship it in.

To be honest I have several revolvers that I have never shot, and a couple that I've shot very little. The "no shoot" revolvers are NIB 28-2 6", and 520. I have a 58 that I've never shot, a 48 4" that I've shot once "and disliked", and two 4" model 19's. Some others I just don't shoot, because I tend to gravitate towards certain models.