The copper oil line to my oil pressure gauge sheared off at the compression fitting on the engine block. Oil dumped under rear tires and I enjoyed a nice high speed spin on a straight!

I'm guessing the line is not designed for the vibrations of racing (this was only the second race weekend on the line). Any one have this happen? I'm thinking that I should put a short run of flexible braided line off the block to handle the vibration.
Thoughts?