Compression fittings

I have redone many cars to remove the compression fittings installed by current or previous owner. One was on a 145+mph 3300 lb drag car. That was an eye opener with 8-10 compression fittings.

While they might work in most cases I always figured if something happened and the insurance company investigator found that the owner installed non-DOT brake parts there may negligence factored towards the owner. That might just be me being paranoid though. Wither way it's best to get a roll of CuNi and a good (Mastercool , etc) flaring tool to land everything with double flares.