The last fuel lines we needed to make go between the fuselage and the wings. In doing that, we noticed our flaring tool was putting gouges in the backside of the flare. Here’s one of the worst ones. After taking the rough edges off with a scotchbrite pad (which didn’t completely remove the marks) I showed it to a couple more experienced builders, and they said it should be fine, given the problem is on the outside of the flare and that’s not an area that flexes. I wanted to be sure, given how critical the fuel system is.