I did a single flare and there leaking so I'm gonna go back and redo them with double flares. I had to buy a new flare kit to get the double flare disks because the kit i have had did come with them. I did some practice double flares with me new tool and they look really good im positive that is the problem. It's really gonna suck trying to reflare them on the car tho lol. The smaller lines I will just take off and redo the longer lines that are weaved thru im gonna flare where they are, or try to at least.