I'm glad to see someone finally making a rounded off spine. I have a custom Jack Crain Commando (from the Governators movie of the same name), just cause at the time I was single and didn't have a hollow handle version) and had him round off the spine. If you've never used one, WHAT A DIFFERENCE! It don't hurt you hand/fingers and don't chew up your baton as bad, just more or less dents it somewhat. Wish more makers would do this.