Gates polymeric (shrinkwrap) hose clamps

anyone ever use these? They sound like a good permanent repair technique if you add a backer, ie. pipe section under its hose ends. Wonder if they can be used to overlap the hose end to the spud to compensate for a slight deformation of the OD of the tube? I have a stainless EFI regulator hard line to connect to a nylon fuel line but the stainless needed to be cut so I have no bead on it, just a smooth almost round end.
[ame="https://www.youtube.com/watch?v=GH1po8kP9c8"]Gates PowerGrip SB Clamps & Blue Stripe® Coolant Hose - YouTube[/ame]