The variety of aided loudness growth patterns identified reflects the diversity known to characterize individuals with early-onset S/PHL. Loudness rating at the validation stage of HA fit with these listeners is likely to reveal nonnormal loudness, signaling need for further HA adjustment. High satisfaction, however, despite nonnormal loudness growth, suggests that listeners with poor auditory speech recognition may benefit more from aided loudness that supports pattern perception (via the time-intensity waveform of speech), different from most current-day prescription fits.