Yeah I'll be interested to see. That circuit relies on the voltages being spot on to work properly, once I got the relay trigger voltage right on this one, I then had to change the time constant cap as it was taking about 13 sec to come on, and that too long and not necessary everything stabilises in the first 3-4sec, so I set to 6sec.
From memory and discussions here, 6 sec seems to be what I remember it used to do before the protection failed all together...