Thanks for your question/update. Would you please say more about whether using a .csv file to establish setpoints seemed to work well (despite the drawbacks of the ResStock Resstock setpoints)? I've been trying to utilize .csv-sourced setpoints for a HPWH, but the resulting tank temperature sometimes leads the setpoint increases. In other words, the tank temperature increases before the setpoint for the HPWH compressor has increased. Thanks!