Hi there,
I am about to replace the brake lines throughout the truck and seeking advice whether to go copper/nickel or zinc (coated mild steel I think)? tubing.
I have heard with copper/nickel if later on I decide to undo the nut there is a good chance it binds and I risk twisting off about an inch of tubing.

After any advice, suggestions is it worth going copper/nickel or stick with steel.
Any benefits of one against the other?

Thank you.