Hi, I have never had to deal with scissor beak but I have read quite a bit about others on here that have had chickens with it, I did find this link that might help to answer some questions.. https://www.backyardchickens.com/forum/viewtopic.php?id=237209
It depends how bad it gets and how/if ou manage it. I have one with it really bad, I trim it aboout once a month and also I put her feed in a cup so she can get a good mouthfull. SHe can't pick up scatter from the ground like the others.