Is unraveling that big of an issue??? I consider myself pretty noobish and have some cockeyed cuts and have yet to have an unraveling issue.
Only had one unraveling issue and it was the from the first time I used a punch. But I'll chalk that one up to user error. I kind of punched it slow and cracked the cap.
I like a guillotine. Make a cut, cold draw, and either light it up or cut a little more if needed.