This is a case where an older gas oven with non-electronic controls can be advantageous. As the oven nears its set temperature the gas flow is reduced but not completely cut off. Contrast that with newer models where the flame cuts off completely when the set point is reached, then comes back on at full force when the thermostat calls for heat again. The same phenomenon occurs with electric, but the temperature swing is not so abrupt due to the slow reaction of the heating coil.