Look, it's just a bad idea. You are supposed to swarm packages, not concentrate them. Ideally you shouldn't send > 10 grams in 1 package! For weed maybe an ounce. Maybe.If you focus on your P&P you're being penny wise pound foolish as the Brits say.If you post lots of large packages, that's a real good way to attract attention. Conversely you could fire off hundreds of little packages and by mixing up your packaging it becomes impossible. Remember, there is safety in numbers, that is the overall message of anonymity theory. The minute you're over an ounce you're in a much smaller category of packages. With each gram extra, the probability of interception increases precipitously, it's not a linear progression, it's geometric. Every piece of research I've seen on product in the mail supports that idea.