Welcome to SRP. If you are new at this I would suggest sending it out to a known expert for honing. TI isn't the easiest to hone and learning honing is better on relatively inexpensive used razors than new ones IMO. An experienced honer will be able to tell if the spine of the razor is an issue. I'd say it is unlikely to cause a problem unless it was really far out, but that is not something I could tell without having it in hand. Send it out and you'll have your answer.