Fuel hard line

dodgedude37 said
No, that's what I am trying to copy.

The double flair part starts to form before the initial flair has a line to form a barb.
View attachment 1716149919

That's it. That's probably as good as you're gonna get with a standard double flare tool. As long as you have a barb to tighten the hose down over, you've succeeded. I'd run that.