In search of natural building blocks for supergravity amplitudes, a tentative
criteria is term-by-term bonus z^-2 large momentum scaling. For a given choice
of deformation legs, we present such an expansion in the form of a BCFW
representation in N=7 supergravity based on a special shift. We will show that
this improved scaling behavior, with respect to the fully N=8 representation,
is due to its automatic incorporation of the so called bonus relations.Comment: 16 pages, 2 figure
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