- Don't take a picture in bright sun at noon. Direct sunlight onto the sail makes it impossible to pick out the draft stripes.
- Make sure your sails have draft stripes at all three one-quarter points, and are consistent from sail to sail.
- Take pictures on the tack where the windward side of the picture is in the shadow.
- Do shoot two sequential photos. If one is somehow out of whack, or blurry, the next may be fine.
- When shooting two pictures with different settings (such as outhaul adjusted, jib halyard changed, etc.) shoot a picture of that adjustment so you know what you have done in sequence.
- If your camera has the capability to record audio notes at the same time (as some advanced cameras can), you can add extra information as you're taking the picture.