Resulting spatially integrated X-ray DOP and flux spectra for injected electron distributions with different high energy cutoffs of E_H = 100 keV, E_H = 200 keV and E_H = 300 keV. Each use the following identical electron and plasma properties of: δ = 5, E_c = 20 keV (vertical grey dotted line), a beamed distribution and e s⁻¹, and coronal plasma properties of: n = 3 × 10¹⁰ cm⁻³ and T = 20 MK, plotted for a flare located at a heliocentric angle of 60°. All DOP spectra include an albedo component and a coronal thermal component (EM = 0.9 × 10⁴⁸ cm⁻³). Higher E_H produces a clear flattening in the DOP spectra after the low energy cutoff. No turbulent scattering is present.