Response to post here: http://sympmarc.com/2014/02/18/getting-around-sharepoints-threshold-limits-for-large-reference-lists/

gistfile1.xml

<And>
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        <FieldRef Name='ID'/>
        <Value Type='Counter'>0</Value>
    </Neq>
    </And>
    <Or>
        ... Real filters here filters you want here ...
    </Or>
</And>