Can you post a pic of your setup? If the UTH is on a thermostat at the correct temps, there might be other issues (ex. substrate) that are causing it not to be as warm as it should be. Can you measure the exact temp that her hot spot is currently at? You might need to adjust the tstat (due to other factors I used to keep mine at 95 or so for the hot spot to be at in low 90s)