I asked this question because my boss was moaning that my drawings were taking longer than the rest of the CAD department, but when I pointed out that 95% of the time my drawings don't have to be changed due to mistakes, consequently saving on resources due to re-plotting etc, he quickly changed his mind.
I'm like Keith, I am fanatical about accuracy, probably a little too fanatical though. I even draw my leaders to the nearest 500mm, 497mm is not good enough.
Its gotten such a way that the engineers in my office have started issuing my drawings without checking them, which pisses me off, but they trust my draughting to be accurate.