Heh, no offense taken. I don't know the internals of how nest deals with wild swings in manual inputs, but I haven't seen a problem. Although even if it result

Heh, no offense taken. I don't know the internals of how nest deals with wild swings in manual inputs, but I haven't seen a problem. Although even if it results in a "nights are 80 degrees" situation, the rest of the day is unaffected so at worst it's still better than the other thermostat. Yes, you can set a schedule and disable the physical interface.