Are you pulling data from several different counties that meet your "filter" and mailing or are you only sending to one county at a time with less mail to a broader "filter"?
Example: If I am targeting parcels from 10-50 acres under $2000 market value, my available data may only be 250 parcels for 1 county. If I include several counties, Im able to send a larger mailer maybe to 5 or 6 counties that will bring my mailer up to 1500 or so.
Just wondering what your take is regarding the potency of a small data set in 1 county versus mailing to everyone in 1 county between 10-50 acres?