The best tool I own is my tubing cutter. perfect fit means you can get a perfect weld, or as perfect as you are capable of making. I don't have my DOM bender anymore but will be getting something that can do a wrinkleless bend when I get to building my roll bar setup for da lizard. maybe a nice hydrolic one that doesn't take up so much room. I can always sand pack the tubing to keep those nasty, weakening wrinkles from showing up.