Actually, a slightly cleaner way to accomplish the same end is to delete EQUI.xml from your own directory entirely. Then, in the first loaded file that you modify, insert your includes at the beginning:
Code:
<?xml version = "1.0"?>
<XML ID = "EQInterfaceDefinitionLanguage">
<Composite>
<Include>Gauges.xml</Include>
<Include>Gems.xml</Include>
<Include>ThinBorder.xml</Include>
<Include>Deco.xml</Include>
</Composite>
For me, this is in EQUI_Animations.xml.