Nah just leave it on high, then use a separate temp control to cycle the freezer on and off. Look into the Ranco or Johnson controllers. You plug the freezer into them and it turns power on and off depending on the temp it senses.
"People should not be afraid of their governments. Governments should be afraid of their people." - V
Secondary: Shady Lord RIS, Water to Barleywine, Pumpkin wine, burnt mead
Kegged: Crappy infected mild
Bottles: Apfelwein, 999 Barleywine, Oatmeal Stout, Robust Porter, Robust smoked porter, Simcoe Smash