Before revision:  Importantly, the approach may be used to study the effect of varying biological parameters on the stability of the switch states, and we use it to show that in some cases promoter kinetics, not just thermodynamic stability, can influence switching .
After revision:  Importantly, one can use the approach to study the effect of varying biological parameters on the stability of the switch states, and we use it to show that in some cases promoter kinetics, not just thermodynamic stability, can influence switching .