I have in the past beveled my edges to help from edge catching on rails, but i have found that it doesn't really make that much of a difference.
If you are going to ride rails, you should file them, which is what i just did, and it makes a big difference on rails. I loose a little bit of grip on ice, but not much. Just get a bastard file when you are ready to ride rails and take off a little bit of the edge at a time, then ride and see how it feels, that way you can stop when you like it.
The key is just to take a little off at a time. With a new file, you really don't need to put much pressure on the edge to take some off, so just take light passes, while taking off more in between the bindings, and less at your contact points.