I personally think the lighted knocks should be legal so it would be easier to recover the arrow so some bowhunters can confirm whether they connected on an animal or not Im sure a lot of animals get wounded and die especially in Washington because of the think brush and wet weather which can affect the blood trails. So if you can recover the arrow you can also determine if it was a good shot in the heart or a gut shot so you can back out to allow the animal to expire. Just an opinion from a bowhunter