Yellow Letters vs Form Letters

[Josh Dotzler]

I'll be starting my direct mail campaign soon and wanted to hear what kind of response rate y'all have had specifically with yellow letters vs form letters (w/ handwritten signature and handwritten envelope).

I have two lists, absentee owners (40%-100% equity) and owner occupied (again 40%-100%) equity. I would like to mail to them all. I understand the general consensus is that yellow letters have been the most effective and that it can't hurt to have a combination of yellow letters, form letters, and post cards. However, I'm specifically looking for everyone's response rate with the different approaches.

Thanks