Stainless steel braided line

I did all stainless on my Hardtop. Never again. As said very tuff to work with. Had to rent a top notch flaring tool which I broke the flare adapter. Got lucky and saw a snap on truck at a Bodyshop and bought a replacement for $15. Better than having to buy a broken rental.As for hard braking. I used copper nickle on my ragtop and skid tested in a parking lot a few times. Been 3+ years now. If it wasn't safe I don't think Autoparts stores could sell it? I live in Mass. but I was told steel lines were banned there due to rusting. but have not confirmed.