You mean put hard caps on different Rj sizes and even large turboprops? You already have 64 seaters (really 70 seaters with first class) flying through IAH and EWR, so your scope didn't really work. Those large Dash-8-400s also killed your 735 operation in EWR. And, if you limited it to ONLY 50 seaters, you know, the ones that really don't make money, how does that help you and your company? There are cities out there that can't be fed by a mainline sized plane. How about IAH to Grand Junction, CO? Just not gonna happen. Instead, cap certain sizes, throw a ratio that favors your mainline, and then get your raise. If not, you will still see larger RJs (SKW, Gojets, Mesa CR7s and Shuttle America E170s) flying through all of your hubs, and still have poor workrules and lower pay. Your choice. You won't get rid of the larger RJs, they will stick around. So cap them and move on.