I have never noticed any kind of shroud misalignment in all the years I have shot Dan Wessons, nor have I ever heard of such. I do have one 357 that does shoot left due to some misalignment somewhere. I investigated to find that long ago there was a small batch from Monson that shot left. If they were returned to the factory, they were fixed under warranty, but no one knows exactly what the problem was. Of course the new factory would charge to fix the problem now.
Is your gun a Monson 357?
Roll Tide