As for weights well, the SOP says so-and-so many lbs as a pullet, and so many as a hen. So if you don't weigh, then um how do you know they are for real the right size? I konw for you older guys that have been around them for ages you can tell by the looks and feel that they're "about right." But for people not so used to being around them, I feel weighing them is a big help. I was shocked, for instance, when I weighed my hatchery girls the first time. My God they were light. Here they looked all big and fluffy and yet on the scales, it's all air!