I want to spend out some post card via EDDM this spring. I have my postal routes picked out and want to hit 4825 addresses. I plan on sending out two separate mailing about three weeks apart, so i hit every address twice. I plan on send approximately 1600 every week for six weeks. My question is would it be worth it to send three mailings to each address? Would I see a large enough increase in response to justify the expense. Has anyone one done two or three mailings per address in the same campaign?