For my datafield I use different properties.xml files for different types of devices.
I use resource-folders for specific screensizes like:
/EdgeDash/resources-rectangle-200x265
/EdgeDash/resources-rectangle-240x400
/EdgeDash/resources-rectangle-246x322
/EdgeDash/resources-rectangle-282x470
Each contains a properties file with settings for that screensize. At first I thougt that the simulator wasn't reading the properties. Today I found out that it caches old properties. When I run the app on the Edge1030 in the simulator and afterwards on an Edge1000 it still uses the properties of the Edge1030.
Starting the simulator without and choosing "File->Delete All Apps" solves the problem.