This is a difficult decision in science. If you are too perfectionist you will fail. If you are not, then your contributions can be bullshit. However, there is

This is a difficult decision in science. If you are too perfectionist you will fail. If you are not, then your contributions can be bullshit. However, there is no such thing as a perfect experiment (at least in cognitive sciences), so we depend on converging evidence, so pretending it can be perfect is procrastination.