Yes, a yellow letter gets around a 9% response rate (angry callers, curious callers, tire-kickers, motivated callers) and yes, postcards get around a .5% response rate (mostly quality calls), but if you send the same marketing piece over and over, there is a higher chance that it will become too familiar and the recipient will toss it before reading it, even if you changed the actual message.Also, the marketing pieces themselves could appeal to different people on your list.

Right now I'm reading as much as I can about postcards, yellow letters and marketing to make sure I put the right language on the postcards I send out.

Also, I am not sending out 3-500 postcards or yellow letters.

How many times have you sent out letters or post cards, how consistently are you sending them out it might make a difference or it may be a hot list that a lot of people are mailing to.

Traditionally, many wholesaler have used non internet marketing protocols such as direct mail via either letter or postcard, signs, print advertising, radio, event sponsorship, and cold calling, either robo dial or a telephone solicitor.

I also know that you can upload lists to VistaPrint & they'll print & mail out things like postcards for you. 

Does anybody have a postcard template that they find works more effectively than others?

Postcards, yellow letters, bandit signs (can get you in trouble in some areas), etc.

Mary Joe, They required upload of ID, verification of bank account, mailed postcard to stated residence, w2 upload, and some other items from me.

I understand the math and looking up rehabbers and getting a buyers list, along with sending postcards once you find an owner.