Well, had a guy/friend that builds, and I borrowed his nice tubing flair tool, took those lines to his shop and flaired them, I will keep an eye on it but he said not off the valve, but just between the master cylinder to the valve is the area to be concerned with, that lines is 5 ft long with 5 bends in it, , plenty of line flex (if it does) between there and down to my first fitting. Thanks , I wondered to and he said naw, I am good. He has 5 or six builds still on the road, two daily drivers unibody, everything has held up, I hope to get it on the road and testing in April, maybe rubber mounts under my valve.. we will see.