Profile diagnostics derived from the PAHFIT fits of the Orion Bar templates and the NGC7469 SF spectra. The numbers 1–6 refer to SF1 through SF6, and ‘R’ refers to SFRing. Left: relative contribution of the blue component of the 3.3 μm profile (3.3A), and the red wing of the 3.4 μm profile (3.4B). Center: relative contributions of the blue (5.7A), center (5.7B), and red (5.7C) components of the three-component 5.7 μm profile. The dashed lines represent a grid of constant 5.7B, and the solid line indicates the mean (0.42) over the Orion Bar template spectra. Right: FWHM of the summed 6.2 μm complex versus relative contribution of the broad component to the 7.7 μm complex.