DUMB MECHANICAL OIL PRESSURE GAUGE QUESTION

I was going to run the nylon, but some of the previous posts have me second guessing that. Once the compression nut is lightly seated, how much additional tightening torque is required to secure it without pinching the line.....1/4-1/2 or more?
I probably go down 1 full turn. Possibly more. I seat the piss out of it. Never had an issue.