I was using a custom device when the milking occcured. I have two Stainless steel rings one just behind the head of the penis and the other at the base of my shaft. As far as the settings go i dont have access to that info but it was on a level 2 timed. I believe it was factory settings not sure thou. It happens every time i recieve long pulsed timer pulses.
([n. of activations] * [interval in ticks] / 2) seconds
So for instance if you want an interval of 30 seconds, the ticks would be 60, and you'd need 20 activations to make 10 minutes.
You then have to send the configuration to the device (transmit button).