Don't worry about him, that is what happens when someone get exposed and has nothing to counter with. We want to se you succeed. Now that you mentioned the legnth of your netting I have a question. If that going to make your pen 7 feet in legnth or is the 7 feet of netting going to be made into a retangular pen? There is recommended square footage per bird so they are not crowded and canabalize each other which they will if crowded and sometime even if they are not crowded. That is why they put goggles on them, so they do not see each other directly. Debeaking also helps with canabalism.